In this verse, the evidence, and the convincing proof is Mohammad S.A. and his personality, teaching, conducts, and his methodical way of life ; and the light that can clear our way of ignorance, and darkness is the glorious Quran. In the next verse (NO.176), the result of following such a convincing proof that Mohammad S.A. is; and using the light of Quran, in clearing the way of life, has been explained as being admitted in a field of Mercy and Grace that flows out of the presence of God Himself. A LIGHT THAT IS CLEARING (VERSES 174 & 175)