Kṛṣṇa, by His one plenary portion... When we say of Kṛṣṇa, Kṛṣṇa is not alone. Kṛṣṇa has unlimited expansions. Just like one expansion is Paramātmā. Īśvaraḥ sarva-bhūtānāṁ hṛd-deśe arjuna tiṣṭhati (BG 18.61). Kṛṣṇa expands Himself. There are millions and trillions of living entities. Anantyāya kalpate. The living entities... Sa ca anantyāya kalpate. So Kṛṣṇa's expansion is also ananta. Not only within the heart of all living entities, but He is within the atom also. Aṇḍāntara-stha-paramāṇu-cayāntara. But this is only one plenary portion, expansion of Kṛṣṇa. Therefore in the morning we were studying—or yesterday—that to understand Kṛṣṇa philosophically or in truth, it requires a little intelligence. Therefore Kṛṣṇa says, manuṣyāṇāṁ sahasreṣu kaścid yatati siddhaye, yatatām api siddhānām (BG 7.3).
So Kṛṣṇa expands by His energy, one of the energy, external energy. Therefore it is called aparā. Kṛṣṇa will explain in the next verse, apareyam, inferior energy. For Kṛṣṇa there is no superior or inferior, but for us it is superior and inferior. Because Kṛṣṇa is the supreme spirit soul. Take, for example, just like electricity is producing heat and cool also. There is refrigerator. That is being worked out by the electric energy. And the heater is also being worked out by the electric energy. So we may distinguish this, that "This is heat and this is cold." But for Kṛṣṇa there is no such distinction. That will be understood by further explanation of this chapter.
So these energies, the external energy, Kṛṣṇa says they are separated. "Separated" means you cannot perceive Kṛṣṇa directly from this energy. All materialistic scientists, they cannot understand that earth is also Kṛṣṇa's energy, water is also Kṛṣṇa's energy, fire is also Kṛṣṇa's energy. But they are energy, that they can understand. They are accepting... The scientists, they are accepting that these are different energies. But whose energy, that they do not know. Therefore Kṛṣṇa is explaining herewith that "It is My energy, separated energy." If we analytically study how water can be energy of Kṛṣṇa... We should study Kṛṣṇa and Kṛṣṇa's energies very intelligently. Wherefrom this vast water of ocean came into existence? But we can understand from Bhagavad-gītā that this vast water has come from Kṛṣṇa's energy. Now, try to understand how Kṛṣṇa's energy can produce so large amount of water. So far I am concerned, I study in this way, that we produce perspiration from our body. That perspiration may be one ounce of water, but that is produced from my body. But Kṛṣṇa has got inconceivable energy. I have got also inconceivable energy. How the water is coming out, I do not know. It is inconceivable. But it is coming out. That's a fact. So I am a very small, teeny living entity. If I can produce... Because I am always limited, therefore my energy is also limited. But Kṛṣṇa is unlimited, so He can produce water from the perspiration of His body unlimitedly. We have to understand like that. Otherwise, it is not possible to understand how āpaḥ, water, came from the energy of Kṛṣṇa. It is coming from the living entity. Water is not coming from matter. Just like your perspiration is not coming... When the body is dead, the water is not coming, but so long you are living, the perspiration is there.