US-P18.123ab ।US-P18.123cd ॥
In plain words
A thought comes into view, gets grasped, stands established — and here none of that happens by the thought's own power; it comes from something else. Because that something else is immediately present, this very fact is the inference spoken of: it is like a lamp.
Close to the Sanskrit
The manifestation, the apprehension, and the establishment of cognitions here are from another; because of immediacy, that itself is said to be the inference, as with a lamp.