Trillium

I saw these on my morning hike, before the end of the prayer retreat, and a friend identified them for me.
I thought it was a pretty, three-leaved, flower, and that I could probably remember the name Trillium to go with the number three.
Then the last session of the retreat focused on the roles of the Father, Son, and Holy Spirit in prayer. All three persons of the Trinity are involved.
Now I will always be reminded of that when I see Trillium!