This was the first public display of such love of God. It just burst out of the heart of Sri Caitanya Mahaprabhu, who had until then always kept his love for Krsna somewhat hidden.
In his youth, he didn’t display it at all, though sometimes as a young man he had problems when he just fell to the ground. Mother Saci thought it was some kind of disease. She called Srivas Thakur who was a close friend of the family. When he saw Nimai in that state, he said, “I wish I would get that disease!” He understood very well what was going on. So, it might have been known to some for some time, but never was it displayed so fully as when he took sannyasa.