। ॥
In plain words
The Supreme gives light to the mind, and Himself shines hidden within it. To turn the mind back and join it to Him, here, within the mind itself: there is no seeing of the Lord other than this.
Word for word
Having given light to the mind, the Supreme Himself shines hidden within the mind. Other than joining, here within the mind, the mind turned back, there is no seeing of the Lord.