Verse 12

नूनमस्तंगतो यत्र तृष्णाकृष्णनिशाक्रमः ।पुण्यानि तत्र वर्धन्ते शुक्लपक्ष इवेन्दवः

In plain words

Surely, wherever the dark night-march of tṛṣṇā has set, there puṇyas increase, as the moon waxes through the bright fortnight.