Valmiki Ramayana · Ayodhya Kanda · Sarga 6
प्रकाशकरणार्थं च निशागमनशङ्कया। दीपवृक्षां स्तथा चक्रुरनु रथ्यासु सर्वशः
prakāśakaraṇārthaṃ ca niśāgamanaśaṅkayā| dīpavṛkṣāṃ stathā cakruranu rathyāsu sarvaśaḥ
In the same way lest night should fall (by the time the installation ceremony was completed), the streets were provided with lamps in the shape of trees to light them up.
— M.N. Dutt (1891)
Commentary
Lest nightfall interrupt the ceremony, the streets are provided with lamps. The preparation is meticulous — every possible need anticipated. The city will not let darkness stop the celebration. Light itself is made ready for Rama.
दीपप्रकाश