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I am looking for a word (or expression/phrase), existing if possible or coined-for-the-purpose neologism if not, that represents the all-inclusive superset of a variety of related concepts and pursuits pertaining to the mind, heart, spirit, intentions, etc. Broadly, this is essentially anything that arises out of the functioning of your mind, choices, nervous system, and some things that relate closely but some people believe are metaphysical (like spiritual experiences, religious inspiration, contemplative practices).

Example usage sentence:

In his explorations of ____________________, he explored the best ways to control the mind heart and spirit, and to develop himself using all of the tools available including meditative practices, spiritual guidance, cognitive training, emotional clarity, motivational training, and perseverance.

It is odd to me that such a superset word does not present itself to bind these related ideas together and create a broader field of endeavor/thought.

In particular, looking for a word/expression that brings together concepts that are related but are typically held at odds in English usage: mind, heart/feeling, spirit.

There are a large variety of words that correspond to various more-limited aspects of what we feel, think, do, choose, and metaphysical/spiritual manifestations. The existing words all appear to be too limited.

If one was studying or participating in any of the following loosely-related things, they would all fall under this superset category/expression/word.

The correct category of endeavor/study, and the word naming it, should include the following loosely-related ideas/disciplines/pursuits/words:

mind

consciousness

unconsciousness

psychology

meditation

contemplation

self-reflection

meta-awareness

visualization

intention

choice

mental

intellect

memory

spirit/spiritual

heart (in the romantic/emotional/poetic sense)

freedom/free-will

soul

cognition

perception

somewhat-related spiritual-or-religious-based concepts believed to control or interact with or control the above, such as:

karma

destiny

liberation

salvation

divine intervention

fate

afterlife.

There is, it seems to me, a coherent sense to the idea that people have related interests that span this breadth of topics. These topics can easily flow from one to the next and are often thought to have causal relationships that span them.

Here is a sentence meant to show that many of these concepts/words are often used together within a shared category / within shared thoughts and ideas, and are therefore related within a superset category:

"Your karma causes you to make choices based on your experiences using free will that will determine your destiny, but while your eternal spirit knows all, contains all and is interconnected with all, your mind and psychology only perceive your limited sensory experiences and actions..."

Also, one could make the argument (and others would argue against you) that all of these arise from the functioning of the brain/nervous system so that they are all "brain-derived".

Looking for a single word / phrase / expression / single category which contains all of this. Some of the expressions above sort-of accomplish the goal of expressing a superset idea, but the don't do it comfortably or elegantly. For example, one might suggest that psychology, interpreted broadly, includes all of these concepts, but one would be fairly unlikely to find a psychology book talking about the soul, and perhaps not about "the heart" or free will.

Litmus test for finding or coining the right word: would the study, practice, development or pursuit of all (or most) of the words above be included within the superset category named by this word, and fall logically under its name?

Litmus test #2: this word should not contain "everything". It should be more or less limited to the related concepts above, excluding other concepts. Words that are too broad, because they include many things beyond the intended set (particularly, they contain all of matter and physical existence and laws, and they are therefore too general to point to the idea/category that is being sought/identified): universe, Brahman, nature, god, science, Source, One, Spirit, life.

Per StackExchange, here are some detailed answers to their recommended questions:

Does the question describe exactly in what context you want to use a single word?
The context here would be broad. See example usage sentence above.

Does the question specify the criteria by which the suggested word will be accepted? (How will you choose the best word? What is "best"?)
The "best" word/expression will be the one that most naturally connotes/includes the various ideas above. If it fits well into the above example usage/sentence, it's probably a winner.

Does the question list which words you didn't like, and why they aren't suitable?
I include a long list of candidate words above. I didn't find them suitable as they are all, individually, too narrow and not inclusive of the whole (see discussion of the word psychology above).

Does the question show that you searched for a suitable word before asking the question? Sure how so...

Thank you for your help with this interesting challenge.

In his explorations of being, he explored the best ways to control the mind heart and spirit.

Being is a concept encompassing objective and subjective features
of reality and existence. https://en.wikipedia.org/wiki/Being

Other relevant words are Dasein and ontology.

Dasein (German pronunciation: [ˈdaːzaɪn]) is a German word that means
"being there" or "presence" (German: da "there"; sein "being"), and is
often translated into English with the word "existence". It is a
fundamental concept in the existential philosophy of Martin Heidegger
https://en.wikipedia.org/wiki/Dasein

Ontology is the branch of metaphysics which examines the nature and
categories of existence.
https://philosophynow.org/issues/16/Ontology_for_Beginners

This doesn't match exactly what you're looking for, but qualia seems to capture many of your requirements. From Wikipedia:

In philosophy and certain models of psychology, qualia (/ˈkwɑːliə/ or /ˈkweɪliə/; singular form: quale) are defined to be individual instances of subjective, conscious experience. The term qualia derives from the Latin neuter plural form (qualia) of the Latin adjective quālis (Latin pronunciation: [ˈkʷaːlɪs]) meaning "of what sort" or "of what kind" in a specific instance like "what it is like to taste a specific apple, this particular apple now".

Examples of qualia include the perceived sensation of pain of a headache, the taste of wine, as well as the redness of an evening sky. As qualitative characters of sensation, qualia stand in contrast to "propositional attitudes",1 where the focus is on beliefs about experience rather than what it is directly like to be experiencing.

Philosopher and cognitive scientist Daniel Dennett once suggested that qualia was "an unfamiliar term for something that could not be more familiar to each of us: the ways things seem to us".[2]

Much of the debate over their importance hinges on the definition of the term, and various philosophers emphasize or deny the existence of certain features of qualia. Consequently, the nature and existence of various definitions of qualia remains controversial due to qualia not being a pragmatically verifiable matter.

This gets at most of the words in your list relating to subjective mental experience, but I don't think it applies to things like salvation and divine intervention.

In your example sentence, the word philosophy could plausibly fit:

In his explorations of philosophy, he explored the best ways to control the mind heart and spirit, and to develop himself using all of the tools available including meditative practices, spiritual guidance, cognitive training, emotional clarity, motivational training, and perseverance.

But this may be too broad for what you are looking for.

Mind does seem like the best word for this.

1. (in a human or other conscious being) the element, part, substance, or process that reasons, thinks, feels, wills, perceives, judges, etc.

[...]

13. psychic or spiritual being, as opposed to matter.

https://www.dictionary.com/browse/mind

I don't think the "somewhat-related" concepts constitute a natural category with the mind-related concepts above, and thus I don't think there's a word that encompasses both groups (without encompassing way too much).

Consider the psyche. 

Litmus #1:  The psyche is the object of the study called psychology.  Your psyche is the thing that has your mental and emotional states.  The pysche is also at the heart of everything psychic and mystical.  When extra-sensory perception, divination or communication with the spirit world are regarded as real, the pysche is involved.  The word is commonly defined as mind or heart or spirit, but in practical usage it is all those things rolled into one convenient package. 

Litmus #2:  It doesn't contain everything.  It's not a synonym for universe or existence or natural law.  It has an individual scale.  Even if they are connected, your psyche and mine are distinct and countable.  Your psyche is everything about you that isn't tangible, that isn't obviously and directly physical.  Just like your body, your psyche is an aspect of you. 

In his examination of the psyche, he explored the best ways to control the mind, heart and spirit.

I believe simply self would be the right word.

In his explorations of self, ...

OED definition:

Chiefly Philosophy. The ego (often identified with the soul or mind as distinct from the body); the subject of all that one does and experiences during one's existence; a true or enduring personal identity. Also: a person as the object of introspection; that to which a person refers by singular first-person pronouns (as opposed to other persons or things).