Satataṁ kīrtayanto mām. Always glorifying, they are mahātmās. They are great souls. If you want to be great soul in terms of the Vedic literature, in terms of Bhagavad-gītā, in terms of great saints and sages, then you have to adopt this Kṛṣṇa consciousness and chanting of Hare Kṛṣṇa. No other process will be possible. It is not . . . impossible. Just imagine. A personality like Arjuna, with all facilities of life, and five thousand years before the circumstances were different, and still, he denied.
So yoga system . . . actually, if you simply making a show, show bottle of meditation, if you are satisfied, oh, that is a different thing. Make yourself a show bottle. But show bottle demonstration will not make you successful. It is clearly, according to Bhagavad-gītā. Show bottle demonstration will not make you successful. You have to be really bottle of medicine. Then it will cure. You know . . . of course I . . . here is not . . .
In India we have got some show bottles in the medicine shop. Some red water put into the big bottle, and with electric light. That means advertisement, "Here is a bottle of medicine." But that is a show bottle, red water. So red water will not cure the disease. You must have really, actually, a mixture, fever mixture. But that fever mixture is very difficult.