The text mentions that the Vedas and the six philosophies failed to grasp the Self-substance. What does this imply about the nature of the Substance and the limitations of traditional knowledge systems?

The failure of even the Vedas and the six major philosophies (Shad-darshan) to fully grasp the Self-substance highlights its transcendent nature. Chapter 50 emphasizes that the Substance is not an object that can be captured by intellectual discrimination, debate, or verbal knowledge. The Vedas made a great effort but could not find its 'place,' and the philosophies 'reached their limit' while 'still remained only arguing.' This teaches that the ultimate reality, the Self-substance, is beyond the reach of the mind and language. It exists in its own place, ungraspable by words, making direct, experiential realization through grace the only true path, as opposed to mere scholarly or philosophical achievement.