Īśvaraḥ paramaḥ kṛṣṇaḥ [Bs. 5.1]

The Supreme Lord, the Personality of Godhead, is the dearest in both the conditioned and liberated states. When a person does not know that the Lord is the only dearmost object, then he is in the conditioned state of life, and when one knows perfectly well that the Lord is the only dearmost object, he is considered to be liberated. There are degrees of knowing one’s relationship with the Lord, depending on the degree of realization as to why the Supreme Lord is the dearmost object of every living being. The real reason is clearly stated in Bhagavad-gītā (15.7). Mamaivāṁśo jīva-loke jīva-bhūtaḥ sanātanaḥ: the living entities are eternally parts and parcels of the Supreme Lord. The living entity is called the ātmā, and the Lord is called the Paramātmā. The living entity is called Brahman, and the Lord is called the Parabrahman, or the Parameśvara. Īśvaraḥ paramaḥ kṛṣṇaḥ [Bs. 5.1]. The conditioned souls, who do not have self-realization, accept the material body as the dearmost. The idea of the dearmost is then spread all over the body, both concentrated and extended. The attachment for one’s own body and its extensions like children and relatives is actually developed on the basis of the real living entity. As soon as the real living entity is out of the body, even the body of the most dear son is no longer attractive. Therefore the living spark, or eternal part of the Supreme, is the real basis of affection, and not the body. Because the living entities are also parts of the whole living entity, that supreme living entity is the factual basis of affection for all. One who has forgotten the basic principle of his love for everything has only flickering love because he is in māyā. The more one is affected by the principle of māyā, the more he is detached from the basic principle of love. One cannot factually love anything unless he is fully developed in the loving service of the Lord.

PURPORT by Srila Prabhupada