O all-pervading Supreme Person (Rama), we are (Ocean personified and all living entities within it) dull-minded and did not understand You, but now we understand that You are the Supreme Person, the master of the entire universe, unchanging & original PG

Expressions researched:
"O all-pervading Supreme Person, we are dull-minded and did not understand who You are, but now we understand that You are the Supreme Person, the master of the entire universe, the unchanging and original Personality of Godhead"

Srimad-Bhagavatam

SB Canto 9

O all-pervading Supreme Person, we are dull-minded and did not understand who You are, but now we understand that You are the Supreme Person, the master of the entire universe, the unchanging and original Personality of Godhead. The demigods are infatuated with the mode of goodness, the Prajāpatis with the mode of passion, and the lord of ghosts with the mode of ignorance, but You are the master of all these qualities.

SB 9.10.14, Translation and Purport

O all-pervading Supreme Person, we are dull-minded and did not understand who You are, but now we understand that You are the Supreme Person, the master of the entire universe, the unchanging and original Personality of Godhead. The demigods are infatuated with the mode of goodness, the Prajāpatis with the mode of passion, and the lord of ghosts with the mode of ignorance, but You are the master of all these qualities.

The word jaḍa-dhiyaḥ refers to intelligence like that of an animal. A person with such intelligence cannot understand the Supreme Personality of Godhead. Without being beaten, an animal cannot understand the purpose of a man. Similarly, those who are dull-minded cannot understand the Supreme Personality of Godhead, but when punished severely by the modes of material nature, they begin to understand Him. A Hindi poet has said:

duḥkha se saba hari bhaje

sukha se bhaje koī

sukha se agar hari bhaje

duḥkha kāthāṅ se haya

When one is distressed he goes to the church or temple to worship the Lord, but when opulent he forgets the Lord. Therefore, punishment by the Lord through material nature is necessary in human society, for without it men forget the supremacy of the Lord due to their dull, blunt intelligence.