Walking in the light is the state of being obedient to do all that God reveals to you through the Holy Spirit. For example, when He shows you that you need to overcome laziness, or lying, or any other lust. This means both that you put to death all of the sin you are shown (get light over) and obey all commandments God gives you. When you do this you will not fulfill the lusts of the flesh. (1 John 1:7; John 3:18-21; John 8:12; Romans 8:1-4; Galatians 5:16; Galatians 5:25)