Studying the Trinity during my theology degree meant grappling with some terminology and teaching which I have since mostly forgotten. Perichoresis and circumincession... social and psychological models... a dizzying, infuriatingly hard-to-grasp dance: James Hanvey SJ's melodious voice somehow rendering them as poetry; making them graspable, at least for the duration of the lecture.
But there is one concept I have never forgotten: St Augustine's early description, in De Trinitate, of the Trinity as Lover, Beloved and Love. Here we have a dance which is inviting rather than infuriating! - and an evident equality and mutuality. Lover, Beloved and Love... Whoever Augustine may have ascribed each one to, can we really decide and distinguish which One is which? God, we are assured by St John, is Love, which means that all three Persons of the Trinity are Love; just as they are each and all the ones who are loving, and who are loved.
And today especially, as we celebrate the God who is Lover, Beloved and Love, we can pray that this love may flow into us and through us, and be the source and energy of everything we do.
We can understand love... and we can become love.