An icebreaker
A doctor spent a decade treating plantation workers in British Malaya, then gave up medicine entirely for a monk's life in Rishikesh, founding an organization there in 1936 that still runs today.
He taught a 'yoga of synthesis', service, devotion, meditation and study together, summed up in the Divine Life Society's motto: "Serve, Love, Give, Purify, Meditate, Realize."
Trained directly under him at Rishikesh, he went on to head the Divine Life Society after his teacher's death, continuing its published teaching and its free medical and yoga programs for decades.
After years training under him at Rishikesh, he left to found a separate yoga tradition and teaching organization of his own, carrying forward practices he had first learned as this teacher's student.