Crying is one of the highest devotional songs. One who knows crying, knows spiritual practice. If you can cry with a pure heart, nothing else compares to such a prayer. Crying includes all the principles of Yoga. - Kripalvanandji
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. - A. C. Bhaktivedanta Swami Prabhupada