Those who do not follow the regulative principles, mostly they are diseased, some kind. We find in the medical . . . modern medical shop, the customers are educated people. Mass of people, they are not customers in the medical shop. You'll find it. They are not so much diseased. In every gentleman's house, modern, you'll find so many bottles of medicine. But you won't find such medical bottles in any house of less educated persons. They are not so diseased.
So this is one of the items. If you want to advance in spiritual life, you must follow the regulative principles to rectify your mistakes in the past life and this present life. Without being freed from all contamination nobody can understand God. That is not possible. Bhagavad-gītā says, yeṣāṁ anta gataṁ pāpaṁ: "One who has become completely freed from all kinds of sinful reaction . . ." Yeṣāṁ tv anta-gataṁ pāpaṁ janānāṁ puṇya-karmaṇām, "Persons who are engaged in pious activities only," te, "such person," te dvandva-moha-nirmuktā. (BG 7.28).
This life, the material life, is dvandva. Dvandva means fighting or quarreling. Every one of us has got nature for fighting with others unnecessarily. Even some people come here with a spirit of fighting with me. So this is called dvandva. And moha. How this fighting spirit becomes developed? On account of illusion. What is that illusion?
Accepting this body as self. So if one is contaminated by sinful activity—if he is in illusion, how he . . . illusion of accepting this body as self—what is the meaning of their self-realization? He's illusioned. He'll keep himself in all kinds of contaminated life, and artificially he thinks that by some kind of mystic meditation he'll be all right. This is going on.
No. One must follow. Meditation, yogic meditation, is also possible when there is yama, niyama, āsana, praṇāyāma—the eight principles of yoga system. And nobody follows the eight principles of yoga system, and simply sitting down and meditating, that will not help. The first two steps are yama, niyama, then āsana, then praṇāyāma, then pratyāhāra, then dhyāna, then dhāraṇā, then samādhi. These are explained in the yogic śāstra or Bhagavad-gītā.