I had a Black Widow with the word Vapour on it. Came from James 4:14. "Whereas ye know not what shall be on the morrow. For what is your life but a vapour, that appeareth for a little time and then vanisheth away.
Reminded me that life is like the flight of an arrow, it is fast and short. Also the life of my prey. And most important, that I should think of how I spend my time and that sometimes my time may be better spent with family and friends rather than sitting in a tree, because their life is like a Vapour also.