The Holy Trinity is a great mystery. Maybe we can help understand it in relation to ourselves with three questions:
What is your name?
What is your quest?
What is your favorite color?
(pictured, an unladen African Swallow in flight, courtesy of Alan Manson via https://flic.kr/p/rzTZ63, copyleft https://creativecommons.org/licenses/by-sa/2.0/)