Krishna's infinite expansions possess equal potency while differing only in form, color, and weapons.Listen — Srila Prabhupada Uvaca
Prabhupāda: ananta prakāśe kṛṣṇera nāhi mūrti-bheda ākāra-varṇa-astra-bhede nāma-vibheda [Cc Madhya 20.172] [When the Lord expands Himself in innumerable forms, there is no difference in the forms, but due to different features, bodily colors and weapons, the names are different.] So Kṛṣṇa has innumerable expansions. So far potency of the Lord is concerned, in those expansions there is no difference of potency, but the different names are due to difference of manifestation. Sometimes the Lord is manifested with two hands, sometimes with four hands. And [in] the four hands there are different symbolic representation.
So due to these different kinds of manifestation there are different names, but so far God's six potential opulences are concerned, they are always present in every form and manifestation. There is no difference. vaibhava-prakāśa kṛṣṇera—śrī-balarāma varṇa-mātra-bheda, saba—kṛṣṇera samāna [Cc Madhya 20.174] The first manifestation of the vaibhava feature of Kṛṣṇa is Śrī Balarāmajī. Śrī Balarāma and Kṛṣṇa have different bodily colors, but otherwise Śrī Balarāma is equal to Kṛṣṇa in all respects.] Balarāma. Balarāma is considered to be the elder brother of Kṛṣṇa. When Kṛṣṇa was present, Balarāma became His elder brother.
When Rāma was there, this Balarāma represented Himself as His younger brother, Lakṣmaṇa. So Balarāma is the first manifestation of His personal expansion. vaibhava-prakāśa yaiche devakī-tanuja dvibhuja-svarūpa kabhu, kabhu haya caturbhuja [Cc Madhya 20.175] [An example of vaibhava-prakāśa is the son of Devakī. He sometimes has two hands and sometimes four hands.] Vaibhava-prakāśa, vaibhava manifestation... The example is given: just like when Kṛṣṇa was born, He was not exactly born from the womb of His mother.
So He appeared first of all with four hands. Then, when the mother prayed... She could know that Kṛṣṇa has come. She prayed for become an ordinary child, and at once He became two-handed.
This is called vaibhava-prakāśa manifestation. Ye-kāle dvibhuja, nāma—vaibhava-prakāśa [Cc Madhya 20.176] [When the Lord is two-handed He is called vaibhava-prakāśa, and when He is four-handed He is called prābhava-prakāśa.] When He is two-handed, it is called vaibhava-prakāśa, and when He is four-handed, it is called prābhava-vaibhava. svarūpera gopa-veśa, gopa-abhimāna vāsudevera kṣatriya-veśa, 'āmi-kṣatriya'-jñāna [Cc Madhya 20.177] [In His original form, the Lord dresses like a cowherd boy and thinks Himself one. When He appears as Vāsudeva, the son of Vasudeva and Devakī, His dress and consciousness are those of a kṣatriya, a warrior.] In His original personality, sometimes He represents Himself as the son of Nanda Mahārāja, the cowherds man, and sometimes He represents Himself as the son of Vasudeva, the kṣatriya king. saundarya, aiśvarya, mādhurya, vaidagdhya-vilāsa vrajendra-nandane ihā adhika ullāsa [Cc Madhya 20.178] [When one compares the beauty, opulence, sweetness and intellectual pastimes of Vāsudeva, the warrior, to Kṛṣṇa, the cowherd boy, son of Nanda Mahārāja, one sees that Kṛṣṇa’s attributes are more pleasant.] Aiśvarya, the opulence, six kinds of opulence of which mādhurya, I mean to say, His relationship with His devotees in conjugal love... That is very much prominent in Vṛndāvana. govindera mādhurī dekhi' vāsudevera kṣobha se mādhuri āsvādite upajaya lobha [Cc Madhya 20.179] [Indeed, Vāsudeva is agitated just to see the sweetness of Govinda, and a transcendental greed awakens in Him to enjoy that sweetness.] The beauty, beauty of Kṛṣṇa, is fully manifested in Vṛndāvana. A sixteen-years boy and playing flute, the beauty was so attractive that even Vāsudeva Himself became attracted by the beauty. sei vapu bhinnābhāse kichu bhinnākāra bhāvāveśākṛti-bhede 'tad-ekātma' nāma tāìra [Cc Madhya 20.183] [When that body is a little differently manifested and its features are a little different in transcendental emotion and form, it is called tad-ekātma.] Now, that original feature of Lord Kṛṣṇa, when there is a little difference, that is called tad-ekātma. tad-ekātma-rūpe 'vilāsa', 'svāṃśa'—dui bheda vilāsa, svāṃśera bhede vividha vibheda [Cc Madhya 20.184] [In the tad-ekātma-rūpa there are pastime expansions [vilāsa] and personal expansions [svāṃśa]. Consequently there are two divisions. According to pastime and personal expansion, there are various differences.] That tad-ekātma, almost the same, that is also divided into two: svāṃśa and vibhinnāṃśa. prābhava-vaibhava-bhede vilāsa—dvidhākāra vilāsera vilāsa-bheda—ananta prakāra [Cc Madhya 20.185] [Again the vilāsa forms are divided into twofold categories—prābhava and vaibhava. Again the pastimes of these forms are of unlimited variety.] prābhava-vilāsa—vāsudeva, saìkarṣaṇa pradyumna, aniruddha—mukhya cāri-jana [Cc Madhya 20.186] [The chief quadruple expansions are named Vāsudeva, Saìkarṣaṇa, Pradyumna and Aniruddha. These are called prābhava-vilāsa.] Now, the prābhava manifestation, four, They are called Vāsudeva, Saìkarṣaṇa, Aniruddha and Pradyumna.
These four names are there. vraje gope-bhāva rāmera, pure kṣatriya-bhāvana varṇa-veśa-bheda, tāte 'vilāsa' tāìra nāma [Cc Madhya 20.187] [Balarāma, who has the same original form as Kṛṣṇa, is Himself a cowherd boy in Vṛndāvana, and He also considers Himself a member of the kṣatriya race in Dvārakā. Thus His color and dress are different, and He is called a pastime form of Kṛṣṇa.] vaibhava-prakāśe āra prābhava-vilāse eka-i mūrtye baladeva bhāva-bhede bhāse [Cc Madhya 20.188] [Śrī Balarāma is a vaibhava-prakāśa manifestation of Kṛṣṇa. He is also manifested in the original quadruple expansions of Vāsudeva, Saìkarṣaṇa, Pradyumna and Aniruddha. These are prābhava-vilāsa expansions with different emotions.] These are all technical terms.
You just go on hearing. But if you want to have them minutely studied, then you have to take a note from this book. And of course, it is necessary, but gradually, when you are conversant with the features of Lord, these things will come automatically. Just let us hear how many forms are there, prābhava-vilāsa, and their technical names. Now, these prābhava-vilāsa forms, four-handed, They are also divided into different names according to the different months.