Do you believe in ghosts/spirits?

I'm interested to find out how many of you believe in spirits roaming the earth.

Have you ever had any personal experiences with messages from beyond? Or maybe you just felt a presence somehow.

What makes you think there is or isn't life after death?

I'm not asking about God or some other higher power here. Religion can ruin many life experiences because of their teachings. I'm not against religion, I simply want to know about life after death and all the thoughts surrounding it.