A book "The most secret knowledge" is scientific work in that logic opens up Бхагавад-гиты ("Songs of God"), one of basic philosophical-religious treatises of veda tradition. In a book on the basis of comments of great teachers of the past explained, as verses are constrained inter se Бхагавад-гиты, her heads and divisions. A book will be especially useful to those, who already began to study to the Бхагавад-гиту, and also all, who takes interest by spirituality, yoga and ancient cultures. For the wide circle of readers.