Authors:

I felt the question of the afterlife was the black hole of the personal universe: something for which substantial proof of existence had been offered but which had not yet been explored in the proper way by scientists and philosophers.

"Raymond Moody, Man Behind ‘Near-Death Experience’ Ponders The Afterlife" by Piet Levy, www.huffingtonpost.com. April 12, 2012.
I felt the question of the afterlife was the black hole of the personal universe: something for which substantial proof of existence had been offered but which had not yet been explored in the proper way by scientists