Kṛṣṇa identifies the Supersoul as the ‘Light of all lights’. He is beyond all darkness (‘Tamasaḥ param’). He is simultaneously the Knowledge, the Object being studied, and the Goal of that study. And this magnificent being is localized right in your heart. The sun, the stars, and even electricity get their power to illuminate from Him. But He is also the internal light that allows the intellect to function. He is the ultimate ‘Subject’ of our life’s journey. Everything we learn is ultimately an attempt to find this source. This verse is incredibly intimate. The cosmic force that powers the galaxies is the same force sitting in your heart, waiting for you to turn toward Him. He is not just a concept to be analyzed; He is the very destination of all our searching. He is the light that makes seeing possible.