The PDF file of the book On the Path of Enlightenment is the personal and transpersonal biography of Leon Moscona - initiator of the vision about the Heavenly Jerusalem on Earth. It describes his spiritual journey, lastiing more than 50 years. In essence, the book contains three parts: a) developing the spirituall bodies of Leon Moscona as an Avatar of Synthesis; b) introducing the New Mysteries from Ireland; c) opening the Mystery School of the Spirit in Bulgaria and Ireland. The book sheds abundant light on the individual and collective work for the development of the whole conception about the reality of the Heavenly Jerusaem on Earth.