100% I believe there is life after death.
A few years back now and my grandad had died who I was really close to, I was in pieces for weeks and broke down in his funeral and for days I never returned to school and didn't even give a thought to when I would go back then one night I woke up at bang on 3.13am (will never forget the time as I saw it on the ticking clock when I walked to the kitchen. I walked to the kitchen having had a piss and I made myself a drink and as I turned to look outside there he was stood at the end of the kitchen table, I blinked to check I wasn't imagining things and he was still there.
I walked towards him he smiled and stroked my cheek with his hand then bang he was gone. I went back to bed and then the next day I went back to school and was able to start moving on.
Crazy stuff but I saw him I swear