Lord Brahmā, thus seeing the Personality of Godhead in His fullness, was overwhelmed with joy within his heart, and thus in full transcendental love and ecstasy, his eyes filled with tears of love. He thus bowed down before the Lord. That is the way of the highest perfection for the living being [paramahaṁsa].
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
तं प्रीयमाणं समुपस्थितं तदा प्रजाविसर्गे निजशासनार्हणम् । बभाष ईषत्स्मितशोचिषा गिरा प्रियः प्रियं प्रीतमनाः करे स्पृशन्
taṃ prīyamāṇaṃ samupasthitaṃ tadā prajāvisarge nijaśāsanārhaṇam | babhāṣa īṣatsmitaśociṣā girā priyaḥ priyaṃ prītamanāḥ kare spṛśan
SB 2.9.18