Considering the complete lack of evidence that our soul or spirit goes on after the body dies in order to live an exciting spirit life haunting smelly old houses, clothing at yard sales, musty books or heavy metal cds, or the even more exciting existence of doing nothing while living in heaven telling god how great he is over and over and over...
Any "evidence" to the contrary, that there is a "spirit world" is fragile to say the least, and seems mostly the product of gullible thinking and overactive imaginations.
I have to say that I'm fairly certain that what evidence we do have points to a very simple fact - contrary to some assertions here, it seems consciousness ends, while life goes on. Your cells are either eaten by other species (hopefully) or it decomposes and your cells are taken up into plants which are eaten by other species or decompose once more, over and over, our cells going on and on.
So life does continue, it's just that without consciousness, it won't mean shit to us!! It is consciousness that gives our lives what we think of as meaning. Without consciousness, there is no thinking, no sense of self and no meaning.
S4