न तद्भासयते सूर्यो न शशाङ्को न पावकः।
यद्गत्वा न निवर्तन्ते तद्धाम परमं मम।।15.6।।
।।15.6।। उसे न सूर्य प्रकाशित कर सकता है और न चन्द्रमा और न अग्नि। जिसे प्राप्त कर मनुष्य पुन (संसार को) नहीं लौटते हैं? वह मेरा परम धाम है।।
The light of illumination which manifests from the atma or immortal soul is what Lord Krishna is referring to here as well. As His transcendntal spiritual body consists of the atmas of all jivas or embodied beings, He, His name, His abode and His pastimes are all illuminating. No sun or moon or fire can illuminate this; for it is spiritual wisdom that gives the light of consciousness. External luminiousity is only able to dissolve the obscurity that intervenes between the senses perceiving their objects.What reveals the atma is called yoga or the individual conciousness attaining communion with the ultimate consciousness. Antagonistic to yoga is karma which are subsequent reactions to previous actions and to conquer this formidable opponent which gains strength from every action performed; one must fully surrender unto the Supreme Lord and accept Him as ones only refuge. That all illuminating light emanates from Him, it is a part of His splendour as a power from Him. The sublime supremacy of this all illuminating light consists of its potency and efficiency in lighting the consciousness by spiritual wisdom. Sunlight no matter how bright, although capable of travelling for millions and billions of miles through space is never able to internally effect illumination in the consciousness as it is only an external phenomena.