One of the most delightful movies I have seen in awhile was Shakespeare in Love, which won the Oscar for the best movie of 1999. One of the favorite lines throughout the movie was, "I don't know. It's a mystery."
And that's what I feel like saying every time Trinity Sunday comes around: "I don't know. It's a mystery."
Isn't that, in a way, what even Jesus is saying when he speaks of the wind or Spirit in the gospel reading today? The wind, like the Spirit, is a mystery. You cannot comprehend the wind or control it. The wind goes where it will. So does the Spirit.