mind is the part of a person that thinks, feels, perceives, remembers, and wills — the seat of awareness and intellect, and by extension a person's memory, opinion, intention, or attention.
The noun spreads across several senses. It names the faculty of thought ("a sharp mind"), a person considered as a thinker ("great minds"), memory ("keep in mind," "bring to mind"), opinion ("change your mind"), and intention ("I have half a mind to leave"). As a verb it means to attend to, to look after, or to object to: "mind the gap," "mind the children," "do you mind?"
The word descends from Old English gemynd, "memory, remembrance; conscious mind, intellect, intention," through Proto-Germanic *ga-mundiz, from the Proto-Indo-European root *men-, "to think" — the same root behind mental. Memory was the original center of gravity, and it survives in remind and in phrases like "time out of mind." The sense of a mental faculty and the sense of purpose both developed later, by the fourteenth century.
Mind is not the brain, which is the physical organ, and not quite 📝consciousness, which is the state of being aware. Psychiatrist 📝Dan Siegel offers a working definition that refuses to confine it to the skull: mind as "the emergent, self-organizing, embodied, and relational process that regulates the flow of energy and information," arising within the body and between people. Capitalized, 📝Mind also names the workflow component of 📝MythOS that turns 📝Memory into 📝Mouth.
"Mind is an emergent property of energy." ~ 📝Dan Siegel