In
Bhagavad-gītā
five principal subject matters have been discussed: the Supreme Personality of Godhead, material nature, the living entities, eternal time and all kinds of activities. All of these are dependant on the Supreme Personality of Godhead, Kṛṣṇa. All conceptions of the Absolute Truth, namely, impersonal Brahman, localized Paramātmā, or any other transcendental conception, exist within the category of understanding the Supreme Personality of Godhead. Although superficially the Supreme Personality of Godhead, the living entity, material nature and time appear to be different, nothing is different from the Supreme. But the Supreme is always different from everything. Lord Caitanya's philosophy is that of "inconceivably one and different." This system of philosophy constitutes perfect knowledge of the Absolute Truth.
The living entity in his original position is pure spirit. He is just like an atomic particle of the Supreme Spirit. The conditioned living entity, however, is the marginal energy of the Lord; he tends to be in contact with both the material energy and the spiritual energy. In other words, the living entity is situated between the two energies of the Lord, and because he belongs to the superior energy of the Lord, he has a particle of independence. By proper use of that independence he comes under the direct order of Kṛṣṇa. Thus he attains his normal condition in the pleasure-giving potency.
Thus end the Bhaktivedanta Purports to the Eighteenth Chapter of the
Śrīmad-Bhagavad-gītā
in the matter of its Conclusions-the Perfection of Renunciation.