The abbot personally received the visiting guests.
Tips
history
Originally meant a room of one square 丈 (zhàng, about 3.3 meters), the quarters of the head monk at a Chan/Zen monastery. By extension the word came to mean the head monk himself.
culture
Also used metaphorically in business/media for the 'boss' of a prominent institution, playfully - e.g. 电竞圈方丈.