This book is a unique & rare masterpiece, which help us to understand our basic nature, identity and existence of our real self. Nothing can be more important to us than to know Brahman and realize our original lost identity and own self. Author explains scientifically that the whole universe/ creation are under great Illusion, Delusion & Maya. Subjects like Dreams, Deep sleep, Death and after Death, Consciousness, Mind and Astral body have been explained scientifically.Whatever knowledge we gain through our finite mind and five senses is not an absolute truth, but a deceptive and false view as desired by Brahman. Even the sciences are under the influence of Maya. Author has gone deeply into the subject 'Who am I' and has interestingly explained the ego 'I', Knowledge-Information, Ether, Black holes, Dark matter & Dark energies, Neutron stars and Galaxies etc.Subjects like Dreams, Deep sleep, Death and after Death, Consciousness, Mind and Astral body have been explained scientifically. Sri Mangla has explained various practical techniques of meditation for easier self-realization of our own self and to know 'Who Am I'. It helps us to understand our basic nature, identity and existence of our real self i.e. ego 'I'. We all are haunted by the eternal question 'Who am I'. We want to know who really we are. From where we have come in this world and where will we go after death? What really we are? Who created us? What does He wants to achieve from us? What is our role? We all are in search to know our own-self (soul) and the Creator Brahman. This book is an answer to our basic quest. Brahman has created us out of Himself thru His Maya. Maya has separated us from Brahman and created ignorance to forget our identity. But we are the part & parcel of Brahman. We have lost our real identity due to Maya. This book is a practical guide to remove the curtains of Maya, so that we can know our self & merge back into Brahman. Then only we can really say that 'I am Brahman' or 'So-ham' or 'Thou Art That I am'.