Therefore, O mighty-armed one, whoever has fully held back the senses from their objects—that person's wisdom stands firmly established.
Explanation
Krishna is speaking to Arjuna, concluding his point from the previous verse: a mind that follows wandering senses loses its wisdom like a boat tossed by wind. Here he says that someone who has restrained the senses (indriya) from their objects, in every way, has steady wisdom (prajñā). Traditions differ on whether this restraint means active control or a natural withdrawal that comes with inner realization, though both see steady wisdom as the result.