Humans are pattern-makers. We make patterns with other people in our lives. We are enmeshed. Break-ups mess with the pattern. Death is a break-up of a relationship, and with it, a part of the self. What do I think? What do I believe? I don't know—and that's the best answer I can give. I do know that scrubbing away all traces of the supernatural hasn't worked too well for the human psyche. There is a valve, a pressure release, that comes with being able to say, 'I can't explain this'. It's not anti-science, it's not superstitious. (...) Perhaps what we sense is not the ghost of the person but the ghost of the pattern.