Afterlife

Hi , does anyone ever think about the afterlife ?.

Like is there one ? .

If there is what is it like ? .

I've been obsessivly thinking about it since an experience that I had at Bodmin goal .

My nan had died one year prior to my visit to the goal .

I went with a friend to the ghost event and I we were in a group of six , we did the glass thing where everybody puts a finger on the glass and the spirit uses the energy to move the glass .

I was very skeptical about the whole thing , the medium was saying that a lady was there that used to be a maid or something .

I had read somewhere that if you say the deceased name and then say come forward , that they will come through .

The medium said that you can ask a question in your mind and the spirit will hear you ,so I said my nans name ,come forward .

I kept repeating this and then the medium said oh wait there's another lady coming through , she's pushed the other lady out !.

And then she started asking are you an older lady etc and the glass was moving .

Anyway it turned out it was my nan , the medium had described her down to a T and was saying that she is laughing at me . 

She then said "she's showing me her legs , they're lovely legs she said but I don't know why she's showing me  " 

I didn't say anything but my nan had cellulitis in her legs.

I can't wrap my head around how she knows all this and I can't wrap my head around how a spirit can function without a brain .

I've over analysed it so much that It's made my anxiety bad because now I'm scared of dying because I don't know what to expect.

Can someone help me put this to bed please ?