The Sunlight is the light of the Truth itself -- whatever power of Truth it may be -- while the other lights
derive from the Truth. When it gets fused into the vital, it takes the mixed colour, gold and green, just as in the physical it becomes golden red or in the mental golden yellow.
Each plane has its own truths. Some of them are no longer true on a higher plane; e.g. desire and ego were truths of the mental, vital and physical Ignorance, a man there without ego or desire would be a tamasic automaton. As we rise higher, ego and desire appear no longer as truths, they are falsehoods disfiguring the true person and the true will. The struggle between the Powers of Light and the Powers of Darkness is a truth here, as we ascend above, it becomes less and less of a truth and in the supermind it has no truth at all. Other truths remain but change their character, importance, place in the whole. The difference or contrast between the Personal and Impersonal is a truth of the overmind - there is no separate truth of them in the supermind, they are inseparably one. But one who has not mastered and lived the truths of overmind cannot reach the supramental Truth. The incompetent pride of man's mind makes a sharp distinction and wants to call all else untruth and leap at once to the highest truth whatever it may be, but that is an ambitious and arrogant error. One has to climb the stairs and rest one's feet firmly on each step in order to reach the summit.