I was just wondering, if anyone can see auras, if they have noticed that everyone's aura is vanishing?

I ask this because I remembered the story about Edgar Cayce. The story goes that he was about to get into an elevator on a high up floor, when he noticed that everyone in the elevator had no aura.

Apparently, one's aura leaves about a week before one dies.

He stepped back and did not get in. Then the elevator plunged down, and killed everyone in it.

So, I thought - if people's auras are going - that will let us know that there is a week or less left.
I was also wondering if this is why dogs are starting intently at their owners in a way they have never done before.