In this particular stanza Lord Śrī Kṛṣṇa, the Personality of Godhead, is distinguished from other incarnations. He is counted amongst the avatāras (incarnations) because out of His causeless mercy the Lord descends from His transcendental abode. Avatāra means "one who descends." All the incarnations of the Lord, including the Lord Himself, descend on the different planets of the material world as also in different species of life to fulfill particular missions. Sometimes He comes Himself, and sometimes His different plenary portions or parts of the plenary portions, or His differentiated portions directly or indirectly empowered by Him, descend on this material world to execute certain specific functions. Originally the Lord is full of all opulences, all prowess, all fame, all beauty, all knowledge and all renunciation. When they are partly manifested through the plenary portions or parts of the plenary portions, it should be noted that certain manifestations of His different powers are required for those particular functions. When in the room small electric bulbs are displayed, it does not mean that the electric powerhouse is limited by the small bulbs. The same powerhouse can supply power to operate large-scale industrial dynamos with greater volts. Similarly, the incarnations of the Lord display limited powers because so much power is needed at that particular time.
For example, Lord Paraśurāma and Lord Nṛsiṁha displayed unusual opulence by killing the disobedient kṣatriyas twenty-one times and killing the greatly powerful atheist Hiraṇyakaśipu. Hiraṇyakaśipu was so powerful that even the demigods in other planets would tremble simply by the unfavorable raising of his eyebrow. The demigods in the higher level of material existence many, many times excel the most well-to-do human beings, in duration of life, beauty, wealth, paraphernalia, and in all other respects. Still they were afraid of Hiraṇyakaśipu. Thus we can simply imagine how powerful Hiraṇyakaśipu was in this material world. But even Hiraṇyakaśipu was cut into small pieces by the nails of Lord Nṛsiṁha. This means that anyone materially powerful cannot stand the strength of the Lord's nails. Similarly, Jāmadagnya displayed the Lord's power to kill all the disobedient kings powerfully situated in their respective states. The Lord's empowered incarnation Nārada and plenary incarnation Varāha, as well as indirectly empowered Lord Buddha, created faith in the mass of people. The incarnations of Rāma and Dhanvantari displayed His fame, and Balarāma, Mohinī and Vāmana exhibited His beauty. Dattātreya, Matsya, Kumāra and Kapila exhibited His transcendental knowledge. Nara and Nārāyaṇa Ṛṣis exhibited His renunciation. So all the different incarnations of the Lord indirectly or directly manifested different features, but Lord Kṛṣṇa, the primeval Lord, exhibited the complete features of Godhead, and thus it is confirmed that He is the source of all other incarnations. And the most extraordinary feature exhibited by Lord Śrī Kṛṣṇa was His internal energetic manifestation of His pastimes with the cowherd girls. His pastimes with the gopīs are all displays of transcendental existence, bliss and knowledge, although these are manifested apparently as sex love. The specific attraction of His pastimes with the gopīs should never be misunderstood. The Bhāgavatam relates these transcendental pastimes in the Tenth Canto. And in order to reach the position to understand the transcendental nature of Lord Kṛṣṇa's pastimes with the gopīs, the Bhāgavatam promotes the student gradually in nine other cantos.