Ali: Shouldn't there be a balance between physical existence and spiritual existence? Like between body and spirit?
Prabhupāda: Yes. First of all, you must have spiritual understanding, then spiritual study. If you have no spiritual understanding, then why spiritual study? All these scientists, they are trying to understand the spirit soul by material, on material platform. Therefore they are being misled. Just like in the Bhagavad-gītā, to distinguish between matter and spirit it is negatively described: nainaṁ chindanti śāstrāṇi. Find out. The spirit soul is there which cannot be cut into pieces by any instrument.
Hari-śauri: Nainaṁ chindanti śāstrāṇi nainaṁ dahati pāvakaḥ (BG 2.23).
Prabhupāda: Ah, nainaṁ dahati pāvakaḥ. Pāvakaḥ means fire. It is never burned into the fire. It is never cut into pieces with instrument or any weapon. So if you study these two points, anything you take, it can be cut into pieces, within our physical experience. And anything within our physical experience, it can be burned. Even the iron, so hot, it can be burned and liquified by proper temperature. Even stone, it can be burned, it can be liquified. The glass, glass is nothing but liquidified stone, everyone knows it. Purīfied by chemicals, that's all. Then?
Hari-śauri: Na cainaṁ kledayanty āpo.
Prabhupāda: Anything physical, it can be moistened. You keep in the water, it will be soft. Na kledayanty? Āpo?
Hari-śauri: Na śoṣayati mārutaḥ.
Prabhupāda: And evaporation. Even the ocean can be evaporated by the air. So we have got this experience of the five or eight elements. They are physical because they are subjected to be cut into pieces, to be burned into fire, to be moistened, to be evaporated. But it is, soul is not affected. Then we have to think of—what is that. Therefore these scientists, they are puzzled. When the soul goes out of the body, they cannot imagine what thing is missing that the body is dead. Because they have physical ideas. But it is not physical. So everything is described. We have to study thoroughly and apply our brain. The brain must be sharp and finer tissues. Then spiritual understanding will be there. With dull brain, physical brain, we cannot understand.