Correct! Asclepius brought his daughter Hygieia, and of course his sacred snake, along with him when he came to Eleusis to be initiated into the Mysteries. According to tradition they arrived late, missing out on the agyrmos, pig-purification, and sacrifice to the Two Goddesses. For this reason, the fourth (or maybe the third) day of the Mysteries was set aside for a sacred procession in honor of Asclepius and a repetition of the earlier rites so latecomers could get caught up. The regular initiates stayed at home and rested, in preparation for the long march to Eleusis on the fifth day of the festival.

No, in case you were wondering, I am not suggesting here that on Tuesday you should stay at home and rest rather than coming to class.