You are in the hands of the laws of prakṛti, even in this life. Even in this life. If you can eat one chatāk, and if you will eat little more, immediately you will become diseased. Immediately. Nature will punish you, three days' starvation. You have taken more. So this is the law of nature. You cannot violate the . . . There is salt is required, little in the food. If it is a little more, you cannot take. If it is a little, you cannot take. So stricture, you cannot violate even a slightest degree the laws of nature. But these rascals are thinking that "I am independent." Ahaṅkāra-vimūḍhātmā kartāham iti manyate (BG 3.27). We should take guidance of the spiritual master or the guru or Kṛṣṇa. Guidance of guru means guidance of Kṛṣṇa, because ācāryaṁ māṁ vijānīyān nāvamanyeta karhicit (SB 11.17.27). Ācāryaṁ mām: ācārya is as good as guru . . . as good as Kṛṣṇa. Caitanya Mahāprabhu says, guru-kṛṣṇa kṛpāya pāya bhakti-latā-bīja (CC Madhya 19.151). Not only Kṛṣṇa's mercy, but guru's mercy, both mercy required. Guru-kṛṣṇa kṛpāya pāya bhakti-latā-bīja.
So by . . . If you are sincere, actually, if we actually want Kṛṣṇa, Kṛṣṇa is within your heart, īśvaraḥ sarva-bhūtānāṁ hṛd-deśe 'rjuna (BG 18.61). When Kṛṣṇa sees that "Here is a sincere soul. He wants Me," teṣāṁ satata-yuktānāṁ bhajatāṁ prīti-pūrvakaṁ, buddhi-yogaṁ dadāmi tam (BG 10.10). As soon as sees, Kṛṣṇa, that "Here is a sincere person who wants Me," He'll give you nice guru. Guru-kṛṣṇa kṛpa. Yasya prasādād bhagavat-prasādat (Gurvastakam 8). And if you have really a bona fide guru, then by pleasing him you will get the favor of Kṛṣṇa. Yasya prasādād bhagavat-prasādo yasyāprasādān na gatiḥ kuto 'pi. If you have become more than your guru, then "Overcoming guru, I shall get Kṛṣṇa's prasāda, Kṛṣṇa's favor, I have learnt more, guru mara vidyā," that is also not good.
Yasya prasādād bhagavat-prasādo yasya . . .. This is the injunction of the ācārya, Viśvanātha Cakravartī Ṭhākura. He has described very nicely vyavasāyātmikā buddhir ekeha kuru nandana (BG 2.41). The order of guru should be the life and soul of the disciple, without caring for his personal salvation. This is the qualification of śiṣya. Śiṣyas te 'ham śādhi māṁ prapannam (BG 2.7), fully surrendered. And guru's duty is to guide them, guide him how to overcome this cycle of birth of death. These are the relationship between guru and disciple or father and son, mother and son, friend and friend, devatā . . . There are so many devatās. In the śāstras there are thirty-three millions of devatā. They say, "Whatever you worship"—the rascals say, not any intelligent man—that "Whatever devatā. You worship Kali, that's all right. You worship Gaṇeśa, that's all right. You worship Sūrya, that's all right. Whatever you are doing is all right. It is the same thing." No. Kṛṣṇa does not say. Kṛṣṇa says mām ekam. That is wanted. Kṛṣṇa never says that "You are worshiping Goddess Kali or Durga or this or that, that's all right." But these rascals said, "Oh, this is all right." And he has become guru. He does not know what is the path of salvation, how one can get out, can get rid of this problem of birth, death—and still they preach.