This text is an invaluable collection of oral instructions from great saints, siddhas - beings who have reached the heights of spiritual realization. It gives spiritual awakening only to those who listen to it, since it is an expression of the living transmission, the awakened mind - "Guhya Mandala" - the secret space of the mind revealed from the dimension of "pure vision" of gods and goddesses. According to tradition, such texts are transmitted either in silence or in special words , or in dreams, through “subtle speech” from teacher to student. The very publication of such a text indicates the presence of favorable karmas in the minds of people for the practice of the highest liberating teachings of Anuttara Tantra.