Is the devotional service the only path to be followed?

Apart from devotional service to the Lord, all other endeavors, including karma and jñāna, are foolish and sinful. All topics excluding service to Śrī Śrī Rādhā-Kṛṣṇa are simply attempts to cover the soul’s eternal propensity. It is said that Lord Hari takes everything away, but what does He take? He does not take our skin, or flesh. He wants our soul. By taking shelter of the Supreme Lord, all our responsibilities are fulfilled.