Noriaki Ito is the Rinban (a kind of abbot or pastor) of the Higashi Hongan-ji Betsuin, a century-old Buddhist community in the Little Tokyo neighborhood of Los Angeles. He is a Pure Land Buddhist of the Jodōshinshū sect. Nori has been my friend for many years. He is also my teacher in matters of Buddhist faith, as I am his in matters of Christian faith. We have spent many happy hours sharing our respective faiths and learning from one another important truths. In this chapter, I want to reflect on certain aspects of the doctrine of the Holy Trinity in light of what I have learned from Nori and other Pure Land Buddhists, both in Los Angeles and in Japan. Especially, I want to reflect on the Trinity in light of the Pure Land Buddhist teaching of the “Primordial Vow” (hongan), in which the ultimate character of all reality is affirmed as utterly selfless compassion. Nori may be my teacher, but the errors in this chapter, regarding both Buddhism and Christianity, are my own. Therefore I am the one “to be beaten with his own stick,” as the Japanese proverb has it. I shall consider this chapter a huge success if these preliminary reflections lead to more Christian thinking about the Trinity in light of the teachings of Buddhism.