His Eminence the Third Jamgön Kongtrül Rinpoche offers a masterful exploration of mahamudra, the pinnacle of Tibetan Buddhist meditation practices. Drawing from the rich traditions of the Kagyü lineage, this seminal work unveils the essence of mind's true nature, guiding practitioners through the intricacies of ground, path, and fruition mahamudra. Rinpoche's commentary on the Vajra Song of the First Jamgön Kongtrül blends philosophical insight with practical meditation instructions, making the lofty concepts of emptiness and luminosity accessible to both novice and experienced practitioners. Through vivid metaphors and clear explanations, he illuminates the path to recognizing one's innate buddha-nature, challenging readers to transcend conceptual limitations and experience the boundless clarity of awareness--inviting them to discover the "cloudless sky" of their own minds, free from the obscurations of ignorance and confusion.