If you associate with sattva-guṇa, then you get the body of a brāhmaṇa, intelligent man, saintly man. Everything is ready. It requires only our association, that's all.
Therefore the advice is that "You all become the topmost qualified man." That is the propaganda of Kṛṣṇa consciousness. "Become first-class topmost men. Don't remain . . ." Tamasi mā: "Don't remain in darkness." This is our only request. Otherwise . . . But why we are making this propaganda? Because Kṛṣṇa wants. We are all servant of Kṛṣṇa; therefore our only aim is to serve Kṛṣṇa. And Kṛṣṇa wants that "Save these rascals from rajo-guṇa, tamo-guṇa. Bring them transcendent to sattva-guṇa, and they will be happy." This is Kṛṣṇa's desire. Nistraiguṇyo bhavārjuna (BG 2.45): "Arjuna, you become above the three guṇas." That is the Kṛṣṇa's desire. "Why you are bothering with these guṇas, 'This is my body. This is my family. This is this. This is this. This is this'? You are arguing so much." So therefore Kṛṣṇa said, nistraiguṇyo bhavārjuna: "These are on the material platform. Come to the spiritual platform." Ultimately He said that "You are My very dear friend. Therefore I am disclosing to you the most confidential knowledge." Sarva-dharmān parityajya mām ekaṁ śaraṇam (BG 18.66). This is the whole instruction.
So all these śāstras, all these Vedas, all this knowledge, they are simply leading to Kṛṣṇa consciousness. Vedaiś ca sarvair aham eva vedyam (BG 15.15). But in the Kali-yuga it is very difficult to go step by step.