So yogīs . . . still there are many yogīs in India, they are living for seven hundred years, or three hundred years, four hundred years. They consider not yet perfect. Not yet perfect. They are trying to make perfection of the yoga practice, and they look like young men, say, twenty-five years, thirty years old. But they are seven hundred years old, three hundred years old. There are still yogīs. They are yogīs. They have practiced yoga. Still they consider they are not perfect. The perfection will be when a yogī at his sweet will can leave this body and can go any planet he likes. Not only within this material universe, but also even, if he likes, he can go to the spiritual planet also. That is yoga.
Just like Durvāsā Muni. Durvāsā Muni traveled within this universe and beyond this universe within one year. That is statement is there in the Śrīmad-Bhāgavatam. There was a misunderstanding between him and a devotee, Mahārāja Ambarīṣa. So for that reason he had to travel. He was attacked, and out of the fear of his life he had to travel from . . . to go from one planet to another, one planet to another to save his life.