If you find a free PDF, verify it contains the complete text and is not a paraphrased summary. The authorized version includes an introduction by Sri Bhagavan Nome.
This is a common question for seekers of Advaita, Tantra, and Sri Aurobindo’s vision. The short answer is tricky (more on that below), but let’s first explore why this text is so sought-after. chidakasha gita pdf
He uses everyday imagery to explain complex yoga: If you find a free PDF, verify it