ते तु तज्जगृहू रूपं त्यक्तं यत्परमेष्ठिना ।
मिथुनीभूय गायन्तस् तमेवोषसि कर्मभिः ॥ ४६ ॥
te-they (the Kinnaras and Kimpurusas); tu-but; tat-that; jagrhuh-took possession of; rupam-that shadowy form; tyaktam-given up; yat-which; paramesthina-by Brahma; mithunibhuya-coming together with their spouses; gayantah-praise in song; tam-him; eva-only; usasi-at daybreak; karmabhih-with his exploits.
The Kimpurusas and Kinnaras took possession of that shadowy form which was left by Brahma. That is why they and their spouses sing his praises by recounting his exploits at every daybreak.
The time early in the morning, one and a half hours before sunrise, is called brahma-muhurta. During this brahma-muhurta, spiritual activities are recommended. Spiritual activities performed early in the morning have a greater effect than in any other part of the day.