Haridasa Thakura, how advanced he was just imagine. He was a young man, and a very nice, beautiful prostitute came there at dead of night, wanted to enjoy his company, and he said simply, "Very good idea. Please sit down. Let me finish my Hare Krsna mantra." Is it possible for ordinary man? No. It is not possible. That means he was expert, he was advanced. Caitanya Mahaprabhu has advised, iha haite sarva-siddhi haibe tomara. Caitanya Mahaprabhu has said, "Simply by chanting you'll get all success of life." Sarva-siddhi. It is Caitanya Mahaprabhu's blessing. Iha haite sarva-siddhi haibe tomara. By simply chanting one gets the highest perfection. That is Caitanya Mahaprabhu's blessing and gift. So we should be very careful and follow the regulative principles. Then automatically you'll be perfect. There is no doubt about it.
Leсture on Shrimad-Bhagavatam 1.7.20-21, Vrndavana, 17 September 1976