For nearly 2,000 years, theologians have tried to come up with an analogy to explain the Trinity in a way that isn’t heretical. So far, no one has succeeded, as two Irish peasants explain to St. Patrick:
It has occurred to me that the concept of particle/wave duality in physics might be used to develop a non-heretical analogy. Unfortunately, even if it can be done, it would fail on the grounds that the basic purpose of an analogy is to make a difficult concept easier to understand, and no part of modern physics makes anything easier for normal people to understand.
