The brain does not know what happens after death
But when you die you will have a flash back of all your memories before your brain completely dies
Explanation:
hmmm this question, well no one would actually know the answer
It is often assumed that you will see a bright light flash when you die signaling maybe the entrance to somewhere further beyond the physical world
There is also newton's law stating that energy cannot be made nor destroyed only converted from one form to the other: from this people can be seen as a form of energy, our body and soul, Everything in its entirety, so when we die our energy is not lost just converted, the physical body is not longer capable to hold the energy of the soul so it leaves and some people believe that is where the soul goes into the afterlife.
because of this same reason this is why many people believe in karma, and rebirth.
you shouldn't be afraid of death, it's inevitable, but actually what people fear is not death, it's loneliness and fear of the unknown cuz that's just it, we don't know
Also I think at the point of death, one will feel nothing because that is when their soul can completely remove itself from all ties to its body furthermore all its senses.