Śyāmasundara: So you can conceive of it somewhere so it must exist.
Prabhupāda: Yes. Just like when many Brahmās came. So not only four-headed but millions of headed Brahmās.
Śyāmasundara: Yes. So I can conceive of that so it must exist.
Prabhupāda: The substance is, the fact is you cannot conceive anything which is not in existence.
Śyāmasundara: So somewhere must be the square root of minus one, even though...
Prabhupāda: Yes, that is, spiritual world is like that. But here in this material world, we have got experience, one plus one equal to two, and one minus one equal to zero. In the spiritual world this does not apply. There one plus one equals one and one minus one equals one. Pūrṇasya pūrṇam ādāya pūrṇam evāvaśiṣyate (Iso Invocation), Vedic wisdom. Pūrṇam, that from the complete, you take the complete, still it is complete. So where you have got this idea? So therefore you have to know from the Vedic.
Śyāmasundara: So it must exist if I can...
Prabhupāda: Yes.
Śyāmasundara: But what about the idea that God is evil?
Prabhupāda: He is evil also. He has got His evil also.
Devotee: But not according to our understanding.
Prabhupāda: Yes, but because He is absolute, either He is evil or good, He is God. That is absolute. You cannot say, "God is evil (indistinct) and now, therefore He is evil." No, He is good.