॥ ॥
In plain words
Searching out where the 'I' comes from, with a mind made utterly pure that has entered within, one comes to know one's own form and grows still in you, O Aruṇācala, as a river grows still in the ocean.
Word for word
Having searched out from where the 'I' comes, with the utterly pure mind that has entered within, and having come to know one's own form, one grows still in you, O Aruṇācala, like a river in the ocean.