Many translations have been made from the original Sanskrit of the Yoga Sutras of Patanjali. They have become well loved, well used, and well applied by many in all parts of the world and of all religious beliefs. The Sutras have a power and a timelessness about them which demonstrate the accuracy with which they pinpoint the basic truths of human evolution from subservience to personality glamours to the serene freedom of the soul. Most human problems today originate in selfish desire; the prostitution of the feeling nature to self-centred physical appetites. This is also brought out clearly in the teaching of the Lord Buddha, the treading of the Noble Eight-Fold Path providing the only way out of the "Right Values; Right Speech; Right Mode of Right Right Expression; Right Conduct; Right Effort; Right Rapture or True Happiness". These are attributes of the soul. Patanjali explores exhaustively the means, the techniques and the mental posture which create the connecting thread between the form-centred personality and these stages towards spiritual achievement and soul fusion. The four parts of the book Many different training techniques have been available over the centuries, depending on the condition of human consciousness and the phase of spiritual growth to be accomplished. Each "Yoga" has had its place, fulfilled its function, and become an absorbed part of human experience. In this book the factor of mind in meeting present-day needs is again given prominence as the agent of the soul, and the key to personality release. These Yoga Sutras of Patanjali are based on Raja Yoga, the "kingly science of tine soul": "Through the science of Raja Yoga the mind will be known as the instrument of the soul and the means whereby the brain of the aspirant becomes illuminated and knowledge gained of those matters which concern the realm of the Soul." . The soul is concerned with the working out of planetary purpose and plan; so again we find that mental training, and the self-achievement of the individual, lead to cooperation and service on a scale far more comprehensive and of far greater evolutionary significance than merely the individual effects on the life of the disciple. Sutra 31 of Part IV rings out like a bell and a clarion call to those who venture on the path of union with the soul. "When through the removal of hindrances and the purification of the sheaths, the totality of knowledge becomes available, naught further remains for the man to do."
Pease note: this is a different author from Alice Bailey.
Alice A. Bailey (1880-1949) was an English esoteric practitioner and writer. At the age of 35, she entered the Theosophical Society center in Los Angeles (USA), at the Pacific Grove Theosophical Lodge. In 1919, Bailey (39 years old) severed her ties to the Theosophical Society and began to write texts that he claimed were dictated telepathically by a certain "Tibetan," or "D. K. ». She published those texts under the title Human and Solar Initiation. There she made known the existence of the spiritual hierarchy, which Madame Blavatsky had already spread, although not in an orderly way. She later revealed that the Tibetan D.K. was the master Djwal Khul. She wrote using the teacher's name for 30 years, from 1919 until her death in 1949.
This book has little to do with yoga or the Yoga Sutras and states this in the introduction. The author did not read the sutras, but had them translated by an unidentified "Tibetan" which she then summarizes. The result is a mixture of Protestant Christianity, Hinduism, Theosophy, with a hint of yoga and a large dollop of colonialism chopped together into a very weird spiritual salsa. As an example of the Theosophy being practiced during the time of Blavatsky, it's fairly classic which is probably the only redeeming factor.
Wonderful book that helps one read between the lines as one walks the path of life with one foot on earth and the other on the "other or esoteric" side.
This book is loaded with very advanced spiritual techniques and knowledge. I suggest going through the book with the guidance of a spiritual teacher, specially if you wish to practice the meditations. Master Hector Ramos is one of the teachers who can walk you through it. Previous background in esoteric studies is required to gain an understanding of the content of the book. It is one of the deepest texts based Yoga Sutras of Patanjali that I am aware of. I stopped practicing the book midway.