Prabhupāda: The material energy, it is also coming from Kṛṣṇa. The spiritual en . . . Kṛṣṇa Himself is spiritual energy. Exactly like that is. This weather is coming from sun, but sun is covered. The weather created by sun makes himself covered; not himself covered, it is covering our eyes. Sun is not covered; my eyes are covered. Therefore material means when our consciousness is not developed. That's the meaning. It is somehow or other covered. That is material.
(aside) Where is our scientist?
They . . . the mistake of the scientist is that they do not accept two energies, material and spiritual.
Svarūpa Dāmodara: No.
Prabhupāda: They accept one energy. We accept also that. But they . . . defect is they are beginning from the material. That is their mistake. Just like this weather is beginning from the light, and gradually it is becoming dark. So darkest part, or the dark part, is called material. But the dark is beginning from light, not the light is beginning from dark. That is their method. They are thinking that from matter, consciousness is coming. Now consciousness is there. When it is covered, degraded, that is unconsciousness. So material means when the consciousness is forgetful of Kṛṣṇa. That is material. Material means gradual development of forgetfulness of Kṛṣṇa. That is material. And spiritual means full consciousness of Kṛṣṇa.