Kṛṣṇa is the Supreme Father. He's very loving father, so He has given freedom to His sons. We are all sons. Mamaivāṁśo jīva-bhūtaḥ (BG 15.7). Ahaṁ bīja-pradaḥ pitā (BG 14.4). Kṛṣṇa says: "I am the bīja-pradaḥ pitā. Material nature is the mother." Tāsāṁ yonir mahad brahma ahaṁ bīja-pradaḥ pitā. So the original father is Kṛṣṇa, and mother is this material nature. So I am the soul, spirit soul, very minute position. My, my magnitude is very, very small. That is also given in the śāstra: keśāgra-śata-bhāgasya śatadhā kalpitasya, one ten-thousandth part of the tip of the hair. That is my magnitude. So that bīja, that spiritual spark, is given by Kṛṣṇa, and the material nature, kṣitir āpo 'nalo vāyuḥ khaṁ mano buddhir eva ca . . . (BG 7.4). This body is . . . in this way we have got.
So because we are now in the material world, we have got the propensity to enjoy, to exploit the resources of material nature. Kṛṣṇa has given us the opportunity. Therefore He said in the previous verse that ye yathā māṁ prapadyante (BG 4.11). If you want . . . because material nature is also Kṛṣṇa, or Kṛṣṇa's energy. Not Kṛṣṇa. Kṛṣṇa and Kṛṣṇa's energy, there is no difference. That I have explained last night. Just like the fire and heat, that is the same quality. In the heat there is warmth, and the fire there is warmth. Still, the heat is not the fire. This is called inconceivable, simultaneously one and different. This is perfect philosophy.