The mind is not equipped to comprehend afterlife, it's part of this world, there is no afterlife for it (so to speak)..

Have you ever paused for a moment, dropped your focus, the eyes see but awareness pays no attention, the ears hear but noises ignored, thoughts come and go, but they too are ignored? Who is the one doing the ignoring?Did you cease to exist?

In your dreams do you feel solid objects, do you have conversations with others? Yet when you awake, you know those experiences are not part of this reality?

When the body and mind sleep, where are you? Do you only exist 16 out of 24 hours in a day?