By studying Bhagavad-gītā, one can become a soul completely surrendered to the Supreme Lord and engage himself in pure devotional service. As the Lord takes charge, one becomes completely free from all kinds of materialistic endeavors.

To become free from sinful life, there is only simple method: if you surrender to Kṛṣṇa. That is the beginning of bhakti.

The perfection of yoga, therefore, does not terminate in voidness or impersonalism; on the contrary, the perfection of yoga is attained when one actually sees the Personality of Godhead in His eternal form.