The mind is just like child, sometimes accepting something, sometimes rejecting something. Saṅkalpa-vikalpa. That is the business. So it is very difficult to control the mind. Arjuna, when he was asked to control the mind by yoga practice, he said cañcalaṁ hi manaḥ kṛṣṇa pramāthi balavad dṛḍham: "My dear Kṛṣṇa, You are asking me to control the mind, but I think it is impossible. Especially we are in the political field, royal order. We have to deal with so many political subject matter." So he said that
- cañcalaṁ hi manaḥ kṛṣṇa
- pramāthi balavad dṛḍham
- tasyāhaṁ nigrahaṁ manye
- vāyor iva su-duṣkaram
- (BG 6.34)
"I do not think mind can be controlled. It is very, very difficult, as difficult as to control the breeze or wind, strong wind blowing. It is not possible to control them." That was the verdict of Śrī Arjuna. It will be explained in the sixth chapter.
Actually, it is very difficult to control the mind. So artificially, by controlling the breathing system, there is the process, but still, it is difficult. As I explained yesterday, even a great yogi like Viśvāmitra, he also failed. There are many instances. There was another, Saubhari Muni. He was practicing yoga system within the water. And as soon as he was little agitated by the fish, he wanted to come out and marry and one king's daughter. He wanted to marry all the eight daughters. So there are many instances like that. It is very difficult to control the mind.