 I asked the doctor about this once. Is that common? He goes, yeah, with some people it is. He said, I imagine as people review their lives, the brain can draw out these memories and can cue up the olfactory senses. And he looked at it from a materialist point of view. As a Christian, I look at it from a spiritual view. But if you simply examine our olfactory senses, are there smells like that that can just take you to a place?