मोहक्षयाज्ज्ञानदर्शनावरणान्तरायक्षयाच्च केवलम् ॥१॥
Omniscience (perfect knowledge) is attained when deluding, knowledge-obscuring, perception-obscuring, and obstructive karmas are destroyed.
Before the soul can be fully free, it must achieve "Kevala Jnana" — perfect, infinite knowledge. This happens when the four "heavy" or destructive karmas are wiped out. Imagine a bright sun hidden behind thick clouds. When you blow the clouds away, the sun doesn't "get" bright; it's already bright. The soul is naturally omniscient; we just have to remove the karmic clouds hiding it.