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Thank you for your replies, smurfchops , many things that have happened get me curious about this sort of thing. What sparked my question was my sisters visit to a clairvoyant (I am suspicious of these people) the clairvoyant told my sister my mother was happy and had a child.(she has been dead over 20 years)
Ok that doesn't make much sense until I tell you that 5 years before i was born my mother had a child whilst still in hospital my mother saw a vision of some stranger, she told the nurses at the hospital that someone had come to take her child away. She was told to stop being silly by the nurses, later that day the baby died.
Oddly enough I don't believe in life after death but some very strange things do happen. I was not at my mothers bedside when she died, I was at work but I knew the exact time she died I felt very week and sick and I had to grab something to stop myself from falling to the ground because my legs had gone weak.
There is more to tell , perhaps another time but thanks for the sensible and interesting replies.