Valmiki Ramayana Bala Kanda Sarga 65 Shloka 17

अखिलम् entire, त्रैलोक्यम् three worlds, पूर्वम् formerly, कालाग्निना by fire at the dissolution of worlds, यथा in that manner, दह्यते is burnt, देवराज्यम् kingdom of devatas, चिकीर्षेत if he wants to rule, अस्य for him, यत् which, मतम् likes, दीयताम् be given.

All the three worlds are burning as though with the fire Pralaya (dissolution). His desire may be granted even if he wants to rule the kingdom of the gods.