Whitey Ford: "Yogi, what time is it?"
Yogi Berra: "You mean right now?"
Yogi, the Zen Master and Yankee catcher, may have been well trained by Del Close, in another life.
It has been said that "Time is not a line, but a series of now-points."
And the same can be said for improvisation. The training of improv allows one to experience the shear joy and comfort of always, always being 'in the moment.' One cannot improvise successfully without that mindset.
With no worries of the future, and no regrets for the past, the mind and body can respond with all the unique emotional intelligence its capable of----for only in that moment.