The General Chapter declared it to be the principal feast of the Order in the 17th c.
Carmelites have long ascribed the composition of the hymn. Flos Carmeli to St. Simon Stock
"Hail, Gate of Heaven, with glory now crowned"
"Share with your servants that gladness you gained"
"Bring help to the true heart"
"Strong stem of Jesse" the Flos Carmeli sequence hymn