Mokichi Okada.

You can see the kanji Dai Ko Myo on the 'Scroll of Light" ( Johrei Center)
Mokichi Okada (岡田茂吉 Okada Mokichi, 23 December 1882 – 10 February 1955) was the founder of the Church of World Messianity, in which he is known by the honorific title Meishū-sama (明主様, lit. "Lord of Light"). He is also the founder of Johrei, a healing ritual that claims to use "divine light" to dissolve the spiritual impurities that are the source of all physical, emotional, and personal problems.