Usually the existence and operation of a brain is seen as precondition for a "mind". I once puzzled one of my profs at university when claiming it is the other way around, maybe, that mind is the reason why there is a brain.
However, I think one needs to separate two things here. Cosmic/universal mind/divinity, and individual consciousness. I have no doubt that when i die, all what characterises me as an individual entitity, my own mind, my self-awareness, comes to an end, to a state of non-existence like before.
However, there might be "mind" in the meaning of a higher order. The divine sparkle. The eros that brings cosmos into life - and cosmos being the precondition for the logos of individuality.
Buddha once was asked whether there is an individual soul surviving death, and he denied it, very clearly. The Buddhist teaching of Athman and Anathman - self and non-self - is about this difference: that our individual self is not our real self, but only a passing entity of limited durability, an illusion, and when it dies, what remains is the real, bigger self that is all and always has been and always will be: the face we had before our birth, to lend a Zen wording. Jesus talked of the wheat grain that has to die if it wants to bring rich harvest. Christian mystics talked of the "mystical death" (of the ego) as precondition to win the everlasting life (realisation of the real own divine nature). Luke wrote: "
The kingdom of God does not come with signs to be observed. Nor can one say "Look, here!" or "There it is!", for behold, the kingdom of God is within your. (Luke 17:20-21). Meister Eckhart wrote: "
If God is to be seen, it must be in the light that is God himself. The eye with which I see God is the same eye with which God sees me: my eye and God'S eye are one eye, one seeing, one knowing and one love."
That all gives "incarnation" a whole new twist. The common, generally used understanding of it, imo is a simplification that does more harm than good and is not just simplified, but indeed misleading.
Best expressed it all is maybe in the Japanese Enso:
https://en.wikipedia.org/wiki/Ens%C5%8D
In the end, the greatest mystery of all still lasts: Why is there anythign at all, why is there not just - Nothing? Why is all this show and drama taking place, where does it come from? And most important and relevant for all of us:
Who is it who watches all this, reads this text, thunks of himself as "This is me"? Just to say "BANG!" is a bit too infantile, for my taste. The Big Bang theory describes the How, not the Why, so do all other cosmological theories.