Although the members of the so-called Hindu society had followed the social customs and formulas, they had practically forgotten to execute their religious principles strictly. But with the presence of Sri Caitanya Mahaprabhu they actually began following the regulative principles according to His order. That order is still existing, and anywhere and everywhere, in all parts of the world, one can execute it. That order is to become a spiritual master under the direction of Sri Caitanya Mahaprabhu by following the regulative principles, chanting daily at least sixteen rounds of the Hare Krsna maha-mantra, and preaching the cult of Krsna consciousness all over the world. If we adhere to the order of Sri Caitanya Mahaprabhu, we shall get spiritual strength without a doubt, and we shall be free to preach this cult of the Hare Krsna movement and not be hampered by anyone.
Srila Prabhupada, Sri Caitanya-caritamrta Adi-lila 17.126, purport