Unless one is able to fix the mind at the lotus feet of the Lord, the mind is impossible to control. As Arjuna says in Bhagavad-gītā (BG 6.34):
- cañcalaṁ hi manaḥ kṛṣṇa
- pramāthi balavad dṛḍham
- tasyāhaṁ nigrahaṁ manye
- vāyor iva suduṣkaram
"For the mind is restless, turbulent, obstinate and very strong, O Kṛṣṇa, and to subdue it, it seems to me, is more difficult than controlling the wind." The only bona fide process for controlling the mind is to fix the mind by service to the Lord. We create enemies and friends according to the dictation of the mind, but actually there are no enemies and friends. paṇḍitāḥ sama-darśinaḥ (BG 5.18). Samaḥ sarveṣu bhūteṣu mad-bhaktiṁ labhate parām (BG 18.54). To understand this is the preliminary condition for entering into the kingdom of devotional service.