Prabhupāda: Silence means we shall not talk nonsense. We shall chant Hare Kṛṣṇa. That is silence. Instead of wasting time, talking on this material thing, let us chant Hare Kṛṣṇa. That is positive. And the silence is negative. Stop nonsense; speak sense.
Yogi Amrit Desai: Right! That is right.
Prabhupāda: Paraṁ dṛṣṭvā nivartate (BG 9.59). Paraṁ dṛṣṭvā nivartate. If one ceases his nonsense, then param, the Supreme... Paraṁ dṛṣṭvā nivartate. When you have got better things, then you give up naturally the rubbish. So anything material, that is rubbish. Karma, jñāna, yoga, they're all material. Karma, jñāna, yoga. Even up to so-called yogas, they're all material.