Brahman, Paramātmā and Bhagavān. The same object. So the Brahman realization is impersonal realization. Just like the sun, the sun globe, and the sunshine. They are one, but the sunshine, realization of the sunshine, is not realization of the sun globe. Or realization of the sun globe is not realization of the sun god who is within the sun globe. Vivasvān. His name is Vivasvān. The present predominating Deity in the sun planet, his name is Vivasvān. And his son Manu is called Vaivasvata Manu. This is the age of Vaivasvata Manu. So at the... This is very nice example, that the sunshine, the sun globe and the sun god. They are all one, but still, the sun globe is not the person, sun god; neither the sunshine is not the person sun, although they are one. This is called acintya-bhedābheda-tattva, inconceivably one and different simultaneously.
So Brahman realization is also God realization, but it is partial. The Supreme Lord is sac-cid-ānanda-vigrahaḥ (Bs. 5.1). He is person. But He is not a person like us. He is sac-cid-ānanda-vigrahaḥ. Īśvaraḥ paramaḥ kṛṣṇaḥ sac-cid-ānanda-vigrahaḥ (Bs. 5.1). Vigraha means person. So He is person, Bhagavān. Brahmeti paramātmeti bhagavān iti śabdyate (SB 1.2.11). Three features, realization of the Absolute. The first realization, imperfect realization, is impersonal Brahman. Further advanced realization—Paramātmā realization. And ultimate realization—the Supreme Personality of Godhead, Kṛṣṇa. These are the three stages.
So when He is Hṛṣīkeśa, it is His Paramātmā feature. As it is stated in the Bhagavad-gītā,
- īśvaraḥ sarva-bhūtānāṁ
- hṛd-deśe 'rjuna tiṣṭhati
- bhrāmayan sarva-bhūtāni
- yantrārūḍhāni māyayā
- (BG 18.61)
Īśvara, the Supreme Lord, Kṛṣṇa. Īśvara means the Supreme, īśvara means controller. But the supreme controller is Kṛṣṇa. Īśvaraḥ paramaḥ kṛṣṇaḥ (Bs. 5.1). Control everyone of us, we are controller. We control our family, our society, our business, our factory. There are different kinds of controller. So in that sense everyone is īśvara, but different types of īśvara. But the supreme īśvara.... Supreme means nobody controls Him, but He controls everyone. That is Supreme. Here we are controller, but we are also controlled, somebody else, superior than me. Therefore we cannot be called supreme controller. Supreme controller is Kṛṣṇa.
When Kṛṣṇa was present on this planet, nobody could control Kṛṣṇa, but He controlled everyone. Nobody could control Kṛṣṇa. So therefore the great saintly persons, even Brahmā, they have decided, that īśvaraḥ paramaḥ kṛṣṇaḥ: (Bs. 5.1) "The Supreme controller is Kṛṣṇa." He controls even Brahmā, ādi-kavaye. In the Śrīmad-Bhāgavatam it is said, tene brahma hṛdā ādi-kavaye (SB 1.1.1). Tene, He instructed Brahmā śabda-brahma, Vedic knowledge, hṛdā, through heart. That is Hṛṣīkeśa. You can argue that "Brahmā was the first creature within this universe. So how he could be instructed by somebody else?" No. The somebody else is always there within the heart, Hṛṣīkeśa. Hṛṣīkeśa means controller. Sarvasya cāham... Kṛṣṇa says in the Bhagavad-gītā, sarvasya, in the fifteenth chapter, sarvasya ca ahaṁ hṛdi sanniviṣṭaḥ: "I am sitting in everyone's heart." Mattaḥ smṛtir jñānam apohanaṁ ca: (BG 15.15) "From Me, one remembers and one forgets also." Forgets also. If you want to forget Kṛṣṇa, so Kṛṣṇa will give you such intelligence that you will forget Him forever. Ye yathā māṁ prapadyante tāṁs tathaiva bhajāmy aham (BG 4.11).