Have you ever wondered by Christ said that He is the Light of the world then later said to those who follow Him that they are the light of the world? This might help.
Christ is the light of the world. When we listen to Christ’s voice, faith comes. Faith gives us access into His grace. When we yield to His grace so He says His words and does His works through us, we are also the light of the world. That is, Christ in us is the light of the world.
Scientia, “Real Faith & Reason Journey”
DIRECT LINK TO BOOK – http://RealReality.org/Real_Faith_and_Reason_Vol_1_-_Scientia.pdf