Verse 18

तत्त्वज्ञानं मनोनाशो वासनाक्षय एव च ।मिथः कारणतां गत्वादुःसाध्यानि स्थितान्यतः

In plain words

The jñāna of the Truth, the destruction of the mind, and the destruction of vāsanā, having entered into mutual causality with one another, stand, for that very reason, hard to accomplish.