आस्ते महित्वं प्राग्दृष्टं स्मृत्वा स्मृत्वा पुन: पुन: ॥ ६३ ॥
cirasya pādayoḥ patan
āste mahitvaṁ prāg-dṛṣṭaṁ
smṛtvā smṛtvā punaḥ punaḥ
utthāya utthāya — rising repeatedly; kṛṣṇasya — of Lord Kṛṣṇa; cirasya — for a long time; pādayoḥ — at the lotus feet; patan — falling down; āste — remained; mahitvam — the greatness; prāk-dṛṣṭam — which he had previously seen; smṛtvā smṛtvā — remembering and remembering; punaḥ punaḥ — again and again.
Rising and falling again and again at the lotus feet of Lord Kṛṣṇa for a long time, Lord Brahmā remembered over and over the Lord’s greatness he had just seen.
As stated in one prayer,
bhāratam anye bhajantu bhava-bhītāḥ
aham iha nandaṁ vande
yasyālinde paraṁ brahma
“Let others study the Vedas, smṛti and Mahābhārata, fearing material existence, but I shall worship Nanda Mahārāja, in whose courtyard is crawling the Supreme Brahman. Nanda Mahārāja is so great that the Parabrahman is crawling in his yard, and therefore I shall worship him.” (Padyāvalī 126)
Brahmā was falling down in ecstasy. Because of the presence of the Supreme Personality of Godhead, who exactly resembled a human child, Brahmā was naturally astonished. Therefore with a faltering voice he offered prayers, understanding that here was the Supreme Person.