Examples of direct, or sākṣāt, śaktyāveśa-avatāras are the Śeṣa incarnation and the Ananta incarnation. In Ananta the power for sustaining all the planets is invested, and the Śeṣa incarnation is invested with the power for serving the Supreme Lord.
After describing the śaktyāveśa incarnations, Caitanya Mahāprabhu began to speak about the age of the Supreme Lord. He said that the Supreme Lord Kṛṣṇa is always like a sixteen-year-old boy, and when He desires to descend to this universe He first sends His father and mother, who are His devotees, and then He Himself appears. All His activities—beginning with the killing of the Pūtanā demon—are displayed in innumerable universes, and there is no limit to them. Indeed, at every moment, at every second, His manifestations and various pastimes are seen in different universes (brahmāṇḍas). Thus His activities are just like the waves of the Ganges River. Just as there is no limit to the flowing of the waves of the Ganges, there is no cessation of various features of Lord Kṛṣṇa's pastimes in different universes. From childhood He displays many pastimes, and ultimately He exhibits the rāsa dance.
It is said that all the pastimes of Kṛṣṇa are eternal, and this is confirmed in every scripture. Generally people cannot understand how Kṛṣṇa performs His pastimes, but Lord Caitanya clarified this by comparing the performance of His pastimes to the orbit of the sun. According to Vedic astrological calculations, the twenty-four hours of a day are divided into sixty daṇḍas. The days are again divided into 3,600 palas. The sun disc can be perceived crossing the sky in steps of sixty palas each, and that time constitutes a daṇḍa. Eight daṇḍas make one prahara, and the sun rises and sets within four praharas. Similarly, four praharas constitute one night, and after that the sun rises. And just as the sun can be seen in its movement through 3,600 palas, all the pastimes of Kṛṣṇa can be seen in any of the universes.
Lord Kṛṣṇa remains in this universe for only 125 years, but all the pastimes of that period are exhibited in each and every universe. These pastimes include His appearance, the activities of His boyhood and youth, and His later pastimes, including those at Dvārakā. Since all these pastimes are present in one or another of the myriad universes at any given time, they are called eternal. Just as the sun is eternally existing, although we see it rise and set, appear and disappear, according to our position on the earth, so Kṛṣṇa's pastimes are eternally going on, although we can see them in this particular universe only at certain intervals. As stated earlier, Kṛṣṇa's abode is the supreme planet, known as Goloka Vṛndāvana, and by His will this Goloka Vṛndāvana is manifested in this universe and in other universes as well. Like Kṛṣṇa's name, fame and everything else directly connected to Him, Goloka Vṛndāvana is absolute and is therefore equal to Him.
Thus the Lord is always in His supreme abode, Goloka Vṛndāvana, and by His supreme will His activities there are also manifested at particular places in innumerable universes. And whenever and wherever Kṛṣṇa appears, He displays His six opulences.