प्रसह्य सङ्कल्पपरंपराणां संभेदने सन्ततसावधानम् ।आलम्बनाशादपचीयमानं शनैः शनैः शान्तिमुपैति चेतः ॥ २० ॥
In plain words
Stay awake without a gap, and break the chains of saṅkalpa by force as they link themselves together. With nothing left to lean on, the mind thins out — and slowly, slowly, it comes to rest.
Close to the Sanskrit
Continuously vigilant in forcibly breaking apart the successive chains of thought-constructs, the mind, being diminished for want of any support, slowly, slowly reaches peace.