। ॥ १५४ ॥
In plain words
Running through the seeing, the seer, and the seen alike, there is a single, bare awareness. If the mind dissolves into that, the mind falls into a swoon.
Close to the Sanskrit
In seeing, in the seer, [and] in the seen, that which is strung through [all three] and is mere manifestation — if, therein, the mind becomes dissolved, that becomes a swoon.