The result is that one will simply be killed. So while the yogī’s practicing meditation is like a small serpent's being swallowed by a large serpent, practicing the speculative process to attain the treasure of love of Godhead is also suicidal.
The only possibility, then, is to search for the hidden treasure on the eastern side, which represents the process of devotional service in full Kṛṣṇa consciousness. Indeed, the process of devotional service is itself the perpetual hidden treasure, and one who attains to it becomes perpetually rich. One who is poor in devotional service to Kṛṣṇa is always in need of material gain. Sometimes he suffers the bites of poisonous creatures and is baffled, and sometimes he follows the philosophy of monism and thereby loses his identity and is swallowed by a large serpent. It is only by abandoning all this and becoming fixed in Kṛṣṇa consciousness, devotional service to the Lord, that one can actually achieve the perfection of life.
(Teachings of Lord Caitanya).

Next Lord Caitanya explained to Sanātana Gosvāmī the process by which one can approach Kṛṣṇa. The only process, said Caitanya Mahāprabhu, is devotional service to Kṛṣṇa. This is the verdict of all Vedic literature. As the sages declare, "If someone inquires into the Vedas to determine the process of transcendental realization, or if someone consults the Purāṇas (which are considered sister literatures), one will find that in all of them the conclusion is that the Supreme Personality of Godhead, Kṛṣṇa, is the only object of worship."
Kṛṣṇa is the Absolute Truth, the Supreme Personality of Godhead, and He is situated in His internal potency, which is known as svarūpa-śakti or ātma-śakti, as described in the Bhagavad-gītā. He expands Himself in multiple forms, some of which are known as His personal forms and some as His separated forms. Thus He enjoys Himself in all the spiritual planets, as well as in the material universes.
(Teachings of Lord Caitanya).

Diseased and conditioned, the living entity transmigrates all over the universe. Sometimes he is situated in the upper planetary system, and sometimes he travels in the lower planetary system. In this way he leads his diseased, conditioned life. His disease can be cured only when he meets and follows the expert physician, the bona fide spiritual master. When the conditioned soul faithfully follows the instructions of a bona fide spiritual master, his material disease is cured, he is promoted to the liberated stage, and he again attains to the devotional service of Kṛṣṇa and goes back home, back to Kṛṣṇa.
A conditioned living entity should become aware of his real position and pray to the Lord, "How much longer will I be ruled by all these bodily functions, such as lust and anger?" As masters of the conditioned soul, lust and anger are never merciful. Indeed, such bad masters never cease demanding service from the conditioned soul. But when he comes to his real consciousness, Kṛṣṇa consciousness, he stops serving these bad masters and approaches Kṛṣṇa with a frank and open heart to achieve His shelter. At such a time he prays to Kṛṣṇa to be engaged in His transcendental loving service.
(Teachings of Lord Caitanya).

In this connection there is a very nice verse in Śrīmad-Bhāgavatam (11.29.6), in which Uddhava says to Lord Kṛṣṇa: "My dear Lord, even if someone lives as long as Brahmā, he would still be unable to express his gratitude to You for the benefits derived from remembering You. Out of Your causeless mercy You drive away all inauspicious conditions for Your devotee, expressing Yourself from outside as the spiritual master and from inside as the Supersoul."
If one somehow or other gets in touch with a pure devotee and thus develops a desire to render devotional service to Kṛṣṇa, he gradually rises to the platform of love of Godhead and is thus freed from the clutches of the material energy. This is confirmed in Śrīmad-Bhāgavatam (11.20.8) where the Lord says, "For one who, out of his own accord, becomes attracted to topics of My activities—being neither allured nor repelled by material activities—following the path of devotional service leading to the perfection of love of God becomes possible." However, it is not possible to achieve the stage of perfection without being favored by a pure devotee, or a mahātmā, a great soul. Without the mercy of a great soul, one cannot even be liberated from the material clutches, and what to speak of rising to the platform of love of Godhead. This is also confirmed in Śrīmad-Bhāgavatam (5.12.12), in a conversation between Jada Bharata and King Rahūgaṇa, ruler of the Sindhu and Sauvīra provinces.
(Teachings of Lord Caitanya).

"By watering the root of a tree, one automatically nourishes the branches, twigs, leaves and fruits, and by supplying food to the stomach, one satisfies all the senses. Similarly, by renderingdevotional service to Kṛṣṇa, one automatically satisfies the requirements for all other forms of worship and all other spiritual processes." One who is faithful and firmly convinced of this is eligible to be elevated as a pure devotee.
There are three classes of devotees, according to the degree of conviction. The first-class devotee is conversant with all kinds of Vedic literature and at the same time has the firm conviction mentioned above. He can deliver all others from the pangs of material miseries. The second-class devotee is firmly convinced and has strong faith, but he has no power to cite evidence from revealed scriptures. The third-class devotee is one whose faith is not very strong, but by the gradual cultivation of devotional service he can be promoted to the second- or first-class position. It is said in Śrīmad-Bhāgavatam (11.2.45) that the first-class devotee always sees the Supreme Lord as the soul of all living entities.
(Teachings of Lord Caitanya).

Sometimes the Vedic literature highly praises fruitive activities, mystic yoga and the speculative search for knowledge as different ways to self-realization. Yet despite such praise, in all Vedic literature the path of devotional service is accepted as foremost. In other words, devotional service to Lord Kṛṣṇa is the highest perfectional path to self-realization, and it is recommended that it be performed directly. Fruitive activity, mystic meditation and philosophical speculation are not direct methods of self-realization. They are indirect because without devotional service they cannot lead to the highest perfection of self-realization. Indeed, all paths to self-realization ultimately depend on the path of devotional service.
When Vyāsadeva was not satisfied even after compiling heaps of books of Vedic knowledge, Nārada Muni, his spiritual master, explained that no path of self-realization can be successful unless it is mixed with devotional service. When Nārada Muni arrived, Vyāsadeva was sitting by the banks of the river Sarasvatī in a state of depression. Upon seeing Vyāsa so dejected, Nārada explained the deficiency in his compilation of various books: "Even pure knowledge does not look well unless it is complemented by transcendental devotional service. And what to speak of fruitive activities when they are devoid of devotional service? How can they be of any benefit to their performer?"
(Teachings of Lord Caitanya).

To confirm this statement, in Śrīmad-Bhāgavatam (11.20.9) Kṛṣṇa says that one should follow other paths of self-realization only as long as one is not convinced of His direct order to become His devotee. It is the conclusion of Śrīmad-Bhāgavatam and Bhagavad-gītā that the direct order of the Lord is to give up everything and engage in devotional service.
Firm conviction that one should execute the order of the Lord is known as faith. One who has faith is firmly convinced that simply by rendering devotional service to Lord Kṛṣṇa all other activities are automatically performed, including ritualistic duties, sacrifices, yoga and the speculative pursuit of knowledge. In fact, devotional service to the Lord includes everything. As stated in Śrīmad-Bhāgavatam (4.31.14):
yathā taror mūla-niṣecanena
tṛpyanti tat-skandha-bhujopaśākhāḥ
prāṇopahārāc ca yathendriyāṇāṁ
tathaiva sarvārhaṇam acyutejyā
"By watering the root of a tree, one automatically nourishes the branches, twigs, leaves and fruits, and by supplying food to the stomach, one satisfies all the senses. Similarly, by rendering devotional service to Kṛṣṇa, one automatically satisfies the requirements for all other forms of worship and all other spiritual processes."
(Teachings of Lord Caitanya).