Valmiki Ramayana Kishkindha Kanda Sarga 28 Shloka 25

निद्रा sleep, शनैः slowly, केशवम् Lord Visnu, अभ्युपैति steals over, नदी river, द्रुतम् swiftly, सागरम् sea, अभ्युपैति approaches, हृष्टा joyfully, बलाका crane, घनम् cloud, अभ्युपैति approaches, सकामा filled with passion, कान्ता woman, प्रियम् beloved, अभ्युपैति approaches.

'Sleep steals over Lord Visnu. The rivers run swiftly to the sea, the female herons fly to catch the clouds joyfully. The young bride eagerly approaches her dear lord. (It is believed that Lord Visnu goes to sleep during chaturmasya, ie. from Asarh to Kartik)