Verse 34

रोचते तत्तदाप्नोषि कालेन बहुना पदम् ।न शक्यते मनो जेतुं विना युक्तिमनिन्दिताम्

In plain words

-- is what pleases you, then you reach that state after a long time; for the mind cannot be conquered without a faultless method --