Brahmā addressed Lord Kṛṣṇa as Acyuta because the Lord is never forgetful of a little service rendered by His devotee. He is so kind and affectionate towards His devotees that a little service by them is accepted by Him as a great deal. Brahmā has certainly rendered much service to the Lord. As the supreme personality in charge of this particular universe, he is, without a doubt, a faithful servant of Kṛṣṇa; therefore he could appease Kṛṣṇa.
“We wander behind you, and all this is for you, You, in whose footsteps galaxies turn to ash.” How beautiful to just hear the pastimes of You my Sweet Lord where all anxiety, conflict and confusion of tongues dissolve in the sweetheart of Anandam