Rigveda 1.59.2
मू॒र्धा दि॒वो नाभि॑र॒ग्निः पृ॑थि॒व्या अथा॑भवदर॒ती रोद॑स्योः ।तं त्वा॑ दे॒वासो॑ऽजनयन्त दे॒वं वैश्वा॑नर॒ ज्योति॒रिदार्या॑य॥
mūrdhā divo nābhiragniḥ pṛthivyā athābhavadaratī rodasyoḥ |taṃ tvā devāso'janayanta devaṃ vaiśvānara jyotiridāryāya ||
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book