June 13

Every year on the anniversary [30 September 1912] of the ascension of that blessed soul [Thornton Chase] the friends must visit his tomb on behalf of ‘Abdu’l-Bahá and in the utmost lowliness and humility should with all respect lay on his grave wreaths of flowers and spend all the day in quiet prayer, while turning their faces toward the Kingdom of Signs and mentioning and praising the attributes of that illustrious person. 
- ‘Abdu’l-Baha  (‘Selections from the Writings of ‘Abdu’l-Baha’)