Although many types of philosophers and transcendentalists believe that one who lacks knowledge cannot be liberated from material entanglement, there is no possibility that knowledge without devotional service can award liberation. In other words, when jñāna, or the cultivation of knowledge, leads one onto the path of devotional service, then only does it help one gain liberation, but not otherwise. This is confirmed by Brahmā in Śrīmad-Bhāgavatam (10.14.4):
- śreyaḥ-sṛtiṁ bhaktim udasya te vibho
- kliśyanti ye kevala-bodha-labdhaye
- teṣām asau kleśala eva śiṣyate
- nānyad yathā sthūla-tuṣāvaghātinām
"My dear Lord, devotional service unto You is the best path for self-realization. If someone gives up that path and engages in the cultivation of knowledge or in speculation, he will simply undergo a troublesome process and will not achieve his desired results. Just as a person who beats an empty husk of wheat cannot get grain, one who engages simply in speculative knowledge cannot achieve the desired result of self-realization. His only gain is trouble."
In the Bhagavad-gītā (7.14) it is stated that material nature is so strong that it can be surmounted only by those living entities who surrender unto the lotus feet of Kṛṣṇa. Only they can cross the ocean of material existence. When a living entity forgets that he is eternally the servitor of Kṛṣṇa, that forgetfulness causes his bondage in conditioned life and his attraction for the material energy. Indeed, that attraction is the shackle of the material energy. Since it is very difficult for a person to become free as long as he desires to lord it over the material nature, it is recommended that he approach a spiritual master who can train him in devotional service. In this way he can get out of the clutches of the material nature and achieve the lotus feet of Kṛṣṇa.
There are four social divisions of human society: the brāhmaṇas, or intellectuals; the kṣatriyas, or administrators; the vaiśyas, or businessmen and farmers; and the śūdras, or laborers. There are also four spiritual orders, or āśramas: the brahmacārīs, or students; the gṛhasthas, or householders; the vānaprasthas, or retired persons; and the sannyāsīs, or those in renounced life. Regardless of one's social or spiritual position, however, one who is lacking in devotional service, or Kṛṣṇa consciousness, cannot be released from material bondage, even if he executes his prescribed duty. On the contrary, he will glide down to hell due to material consciousness. Therefore, whoever is engaged in his occupational or spiritual duty must simultaneously cultivate Kṛṣṇa consciousness in devotional service if he wants liberation from the material clutches.