Nothing absurd about âactivitiesâ. The analogy is
brain - mind
legs - walking.
In general format:
ontological object - activity of the ontological object.
A basic summary of metaphysics: There is physical existence and conceptual existence. A physically existing object has
âattributesâ and
âactivitiesâ. More than one physical object can have
ârelationshipsâ. There is no such thing as ontologically existing âredâ. âRedâ is an attribute. There is no such thing as âthinkingâ. âThinkingâ is an activity. There is no such thing as âbehindâ. âBehindâ is a relationship, which needs two ontological objects and an observer, all positioned on a straight line with the observer on one end. In that case object âAâ is âbehindâ object âBâ.
A conceptual existence is an abstraction. There is no physical âtriangleâ, triangle is an abstraction. A concept can have referents in the physical world (âhorseâ), or it can refer to nonexistent objects (âLoch Ness monsterâ), or it can refer to other concepts. Concepts are not âactiveâ, they cannot interact with the physical world. So the two kinds of âexistenceâ must be differentiated.
So if you ask if the âmindâ exists or not, the answer is: âyes, it does as an activity, and no, it does not as an objectâ. Better have precise questions, so you can get precise answers.
The word âmindâ also needs to be defined.

I presented my definition: âthe activity of my brainâ. By putting it simply, the thoughts I express a diametrically different from your ideas, so they cannot come from you. They come from me. They come from my thought processes, which are the activities of my brain. That is the simple fact, or proof.