Intelligent person, they should be Kṛṣṇa conscious, kṛṣṇa-karma, always engaged in Kṛṣṇa's service. Then it is mad-yājino 'pi yānti mām (BG 9.25). Kṛṣṇa says, "One who is always engaged in My service, activities," Kṛṣṇa says, "he comes back to Me." Tyaktvā dehaṁ punar janma naiti mām eti kaunteya (BG 4.9). So practice that. This is Kṛṣṇa consciousness movement. This life will be finished, and you do not know what kind of body you are going to get next. The best guarantee is that you execute Kṛṣṇa consciousness, chant Hare Kṛṣṇa mantra constantly, remain pure by following the regulative principles, and satataṁ kīrtayanto māṁ yatantaś ca dṛḍha-vratāḥ (BG 9.14). Then everything is assured, and your life is successful. At the time of death you go back to home. Just see how Kṛṣṇa, Nārāyaṇa, is so kind that because he feelingly chanted at the time of his death, "O Nārāyaṇa, please come and save me. . ." But he was meaning his son. But Kṛṣṇa did not take that. Just like Pūtanā. Pūtanā wanted to kill Kṛṣṇa. That was his (her) plan. But Kṛṣṇa, because He sucked the breast of Pūtanā, He took him (her) as His mother. This is Kṛṣṇa. Kṛṣṇa never takes the bad side. Kṛṣṇa takes always the bright side. Pūtanā, although she came to cheat Kṛṣṇa, but how Kṛṣṇa will cheat? Kṛṣṇa thought that "I have sucked her breast, so she is My mother. She should go to the same place where Yaśodāmayi is going." This is Kṛṣṇa.
So we should always remember that Kṛṣṇa is very, very kind, and a slight devotional service to Him will please Him. Therefore He is begging, patraṁ puṣpaṁ phalaṁ toyaṁ yo me bhaktyā prayacchati (BG 9.26). What you will give to Kṛṣṇa? He is self-sufficient. But if you give something to Kṛṣṇa, your life becomes successful.