That is very natural to understand. Suppose here, in our temple, we have got some regulative principles. But if everyone says that "I can manufacture my own way of worshiping the Deity," then what will be the condition?
It will be simply pandemonium. You see? So that is going on. Everyone is manufacturing a type of religion, meditation, without any reference to the authorized books. Śruti-smṛti-purāṇādi (Brs. 1.2.101). Therefore, people are becoming atheists, no religion, no principles, and the whole world is in chaos due to this. So Rūpa Gosvāmī has forbidden. And in Bhagavad-gītā also it is said, yaḥ śāstra-vidhim utsṛjya vartate kāma-kārataḥ: (BG 16.23) "Anyone who does not give respect to the authorized śāstras, but he lives whimsically, according to his own way," na sa siddhim avāpnoti, "Such kind of discovering new path of religious system, new path of this or that, he never gets perfection," na sa siddhim avāpnoti, na sukham, "neither happiness."