Your mind cannot upheld logical thinking.
If you are your brain.
You=Mind
Then your mind shuts down.
Mind
Watch this, oh oh.
Mind=You
Simple as that.
But in many ideas of the afterlife, your brain has nothing to do with it. You are an empty vessel, as are all living things. Your Soul is what drives you. It what makes you whole and what allows you to live, even if you can explain the process of living scientifically. Under which case, your mind and your Soul are connected. In basic, your Soul can live without a mind, but your mind can't survive without a Soul. And the Soul is what passes on to the other side, while the mind ceases. Such says those beliefs, at least.
Lies.
They do!
Feeeeeel the tree.
Unless you're a dendrophile.
In which case that's rape. :C