On this Trinity Sunday I remember this image from St Ignatius

‘while praying the office of Our Lady on the steps of [a] monastery, his understanding began to be raised up, in that he was seeing the Most Holy Trinity in the form of three musical keys (en figura de tres teclas), and this with so many tears and so many sobs that he could not control himself. And on walking that morning in a procession which was leaving from there, at no point could he restrain his tears until the mealtime, nor after the meal could he stop talking, only about the Most Holy Trinity” (trans. Munitiz and Endean, modified)