It is one matter to read theoretical knowledge, but it is a different matter to realize it practically. It is said that good ideas are a dime a dozen, but they are not worth a plug nickel if you don’t act on them. The theoretical Pundits may have knowledge of all the scriptures in their head, but still be bereft of realization. On the other hand, the
karm yogis
get opportunities day and night to practice the truths of the scriptures. Thus, the consistent performance of
karm yog
results in the realization of spiritual knowledge. And when one attains the perfection of
naiṣhkarmya-siddhi
, or actionlessness while performing work, transcendental knowledge becomes available through experience. Fixed in that knowledge, the
karm yogi
attains the highest perfection of God-realization.
Shree Krishna explains how this happens in the next verse few verses.