The book "The Lamp that Illuminates and Clearly Establishes the Meditation Properties of the Preliminary Practices of Vajra Yoga - the Deep Path, the Essence of the Sixfold Yoga" was written by the outstanding master of the Jonang tradition - Bamda Thubten Geleg Gyamtso. The author gives deep essential instructions on the methods of implementing the external and internal preliminary practices of the Kalachakra tradition, as well as the exact criteria for the emergence of these states in the mental continuum of the practitioner. This text perfectly complements another work by Bamda Gelega - "The Chariot Delivering to the Realm of the Four Kayas" and is a direct guide to practice based on the text "Collection of preliminary and basic practices of the deep path of the Kalachakra Vajra Yoga of the Jonang Tradition".Let the merit of publishing this book will cause the spread of the Kalachakra Tantra in this world, as well as the long life of the great masters!Editorial layout saved in PDF A4 format.