The darkness regarding conduct in which men are involved has largely a moral root. Men are blinded by their appetites and passions, so that they cannot see the best ends and enjoyments of life. It is the strong craving we have for gratifications of sense and of worldly desire that misleads us in life. As some creatures have the faculty of emitting a dark and turbid matter that discolours the water, and hides them from their pursuers, so it is a self-evolved and home-made darkness that involves us. False expectations are the atmosphere of our life; we live in an unreal world created by our own tastes and desires, which misinform us, and bid us seek the good of life where it is not to be found.
It is then this light that Christ is and brings, light upon human life, light upon all that most intimately concerns human character, human conduct, and human destiny. What each of us chiefly needs to know is, what is the best kind of human life—how can I best spend my energies, and how can I best sustain them? Are there any results of life which are satisfying and which are certain; and if so, how can I attain them? Do not all things happen alike to all; is it not with the wise man and the righteous as with the fool? Is life worth serious devotion; will it repay what is spent upon it? Is not cynical indifference, or selfish caring for present interests, the most philosophical as well as the most pleasant and easy attitude towards life to assume? These are the questions which we find answered in Christ.
The expression, “the light of life,” may, however, have a somewhat different meaning. It may mean that he who follows Christ shall have that light which accompanies, and is fed by, the life which Christ gives. At the outset of the Gospel John declared that “the Life was the light of men.” And this is true in the sense that they who accept Christ as their life, and truly live in Him and by Him, walk in light and not in darkness. The clouds and gloom which overhung their life are dissipated. Their horizon is widened, their prospect cleared, and all things with which they have presently to do are seen in their true dimensions and relations. They who live with the life of Christ have a clear light regarding duty. The man who has entered into the life Christ opens to us, however slow and dull in intellect he may be, may indeed make many mistakes, but he will find his way through life, and issue from it, in his measure, triumphant.