This book is a collection of several lectures given by the late mystic, ?Allamah Ayatullah Sayyid Muhammad Husayn Husayni Tihrani (May God bestow paradise upon him), on various issues of the intuitive knowledge and belief.The sermons are diverse, but they are based on Shiism in recognizing the truth of existence and moving towards the origin of life - the subject of monotheism, its necessities and how to reach the highest horizon of gnosis (ma'rifah).The view of the school of Ahl al-Bayt (peace be upon them), the people of knowledge and mysticism in all aspects of life [including the world of creation, the path to the higher origin, revelatory teachings in the form of doctrinal foundations, apparent and religious duties], and in general the world of education and purification of soul (nafs), is based on monotheism. Monotheism limits all aspects of life to the will and providence of God, and this is evident in the works and prayers of The Fourteen Infallibles (peace be upon them).