According to Wikipedia, Kairos is an ancient Greek word meaning the right or opportune moment. "The ancient Greeks had two words for time, chronos and kairos. While the former refers to chronological or sequential time, the latter signifies "a time in between", a moment of undetermined period of time in which "something" special happens. What the special something is depends on who is using the word. While chronos is quantitative, kairos has a qualitative nature."
I think of kairos as when stones are bubbles, and life is both solid and fluid, open and contained, like now and now and now. I dip with each beat of the word "now". My head bobs and bows.