This Upanisad was published by the great pioneer of the Krsna Consciousness movement, Srila Bhaktivinoda Thakura. The Thakura searched the length and breadth of Bengal to procure an original copy of the manuscript of this rare Upanisad, which describes the unique position and advent of Lord Caitanya Mahaprabhu. It also describes the glorious position and importance of the Maha mantra, or the chanting of the divine name of Sri Krsna. He was finally provided a copy of the original handwritten manuscript from one pandita, Madhusudana Maharaja, of Sambala-Pura.
Upon the request of many Gaudiya Vaishnavas of the time, He wrote a lucid sanskrit commentary called Sri Caitanya-Caranamrta, or the the nectar of the lotus feet of Lord Caitanya. The first edition of this book was originally printed in Calcutta, Bengal by the Sri Caitanya Press in 1887.
It is to be noted that the great Sampradaya Acarya of the Gaudiya Vaishnavas and of the Krsna Consciousness movement, His Divine Grace A.C. Bhaktivedanta Swami Prabhupada, has cited from this Upanisad in His Sri Caitanya-Caritamrta Bhasya [purport] of Adi-Lila 2.22. to explain the sacred divinity of Sriman Mahaprabhu:
"... Apart from the relevant scriptural evidence forwarded by Srila Krsna Dasa Kaviraja Goswami, there are innumerable statements regarding Lord Caitanya's being the Supreme Lord Himself. The following examples may be cited: (1) From the Caitanya Upanisad: Gaurah sarvatma maha puruso mahatma maha yogi tri gunatitah sattva rupo bhaktim loke kasyati. Lord Gaura who is the all pervading Supersoul, the Supreme Personality of Godhead, appears as a great saint and powerful mystic, who is above the three modes of nature and is the emblem of transcendental activity. He disseminates the cult of devotion throughout the world...".