I am the world's biggest non-believer of this type of thing, but i had an experience about 12 years ago that i'll never forget ........
My mum's best friend died of cancer in her early thirties and i used to spend a lot of time at their house cos i was good friends with her son.
Anyhow, about a year after she died it was a hot summer's day and i was sat in my office with the door open. Everyone else was out.
All of a sudden it turned really cold (don't laugh

) and i heard a voice wispering my name from just behind the open door

I couldn't have been someone outside because there was an empty room between my office door and outside.
My heart started pounding cos i knew i was alone and the voice kept wispering my name over and over and i instantly recognised it as my mum's dead friend
I walked over to the door and as i approached it, the voice said "look after your mum!" and i felt something rush through my body
I immediately rushed outside to find absolutely no-one in sight. Our business premises cover 4-acres and is not near a main road.
This really did happen and was before any recreational drug use
