So how this is possible, I shall read the Seventh Chapter of Bhagavad-gītā, which is spoken by Govinda Himself. (finds page) Bhagavad-gītā, Seventh Chapter. Lord Kṛṣṇa says:
- mayy āsakta-manāḥ pārtha
- yogaṁ yuñjan mad-āśrayaḥ
- asaṁśayaṁ samagraṁ māṁ
- yathā jñāsyasi tac chṛṇu
- (BG 7.1)
Now, here the word yogam is also explained. What sort of yoga Kṛṣṇa is recommending? Mayy āsakta-manāḥ: keeping the mind always attached to Kṛṣṇa, this yoga system. This Kṛṣṇa consciousness is yoga system. At the present day, they are concentrating their mind on something void, impersonal, according to their own prescription. The real process is to concentrate the mind on something. But that something, if we make it void, it is very difficult to concentrate our mind in that way.
That is also explained in the Bhagavad-gītā, in the Twelfth Chapter: kleśo 'dhikataras teṣām avyaktāsakta-cetasām (BG 12.5). Those who are trying to meditate on something impersonal and void, their trouble is greater than those who are meditating on the Supreme Person. This is explained. Why? Avyaktā hi gatir duḥkhaṁ dehavadbhir avāpyate (BG 12.5). We cannot concentrate our mind (on) something impersonal.
If you think of your friend, if you think of your father, mother or somebody whom you love, you can continue such thinking for hours together. But if you have no objective to fix up your mind, then it is very difficult. But people are being taught to concentrate on something void and impersonal.