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Šrū Caitanya-caritāmrta
[[Madhya-lilā. Ch 20
come one with the Absolute. This means finishing one's personal existence. However, the spiritual part and parcel of the Supreme Personality of Godhead has an eternal individual existence.  Bhagavad-gītā  confirms that the individual soul existed in the past, is existing in the present and will continue to exist as an individual in the future. Artificially trying to become one with the Absolute is suicidal. One cannot annihilate his natural condition.
A  yakṣa , a protector of riches, will not allow anyone to take away riches for enjoyment. Such a demon will simply create disturbances. In other words, a devotee will not depend on his material resources but on the mercy of the Supreme Personality of Godhead, who can give real protection. This is called  rakṣiṣyatīti viśvāsaḥ  or (in the Bengali poetry of Bhaktivinoda Ṭhākura's  Śaraṇāgati ),  ‘avaśya rakṣibe kṛṣṇa’  — viśvāsa pālana . The surrendered soul must accept the fact that his real protector is Kṛṣṇa, not his material acquisitions.
Considering all these points, devotional service to Kṛṣṇa is the real treasure-house for the living entity. When one comes to the platform of devotional service, he always remains opulent in the association of the Supreme Personality of Godhead. One who is bereft of devotional service is swallowed by the black snake of the yoga system and bitten by the wasps and drones of fruitive activity, and he suffers consequent material miseries. Sometimes the living entity is misled into trying to merge into spiritual existence, thinking himself as good as the Supreme Personality of Godhead. This means that when he comes to the spiritual platform, he will be disturbed and will again return to the material platform. According to Śrīmad-Bhāgavatam (10.2.32):
ye ‘nye ‘ravindākṣa vimukta-māninas 
    tvayy asta-bhāvād aviśuddha-buddhayaḥ 
    āruhya kṛcchreṇa paraṁ padaṁ tataḥ 
    patanty adho ‘nādṛta-yuṣmad-aṅghrayaḥ
Such people may become  sannyāsīs , but unless they take shelter of        Kṛṣṇa     ⓘ    's lotus feet, they will return to the material platform to perform philanthropic activities. In this way, one's spiritual life is lost. This is to be understood as being devoured by the black snake.
TEXT 1366
এঁছে শাস্ত্র কহে,—কর্ম, জ্ঞান, যোগ ভ্যক্তি’ । ‘ভক্ত্যে’ কৃষ্ণ বশ হয়, ভক্ত্যে তাঁরে ভক্তি ॥ ১৩৬ ॥
aiche śāstra kahe, —karma, jñāna, yoga tyaji' ‘bhaktye’ kṛṣṇa vaśa haya, bhaktye tāṅre bhaji