। ॥
In plain words
As one dives into a well of deep water, so dive within, wholly, with a sharpened intellect. Restraining breath and speech, and searching, one should find the root of one's own ahaṅkāra.
Word for word
As into a well of deep water, so diving within, wholly, with a sharpened intellect, restraining the breath and speech, searching, one should find the root form of one's own ahaṅkāra.