"Devotion involves certain factors which it is valuable for the devotee to realize. 1. A capacity to decentralize oneself, to change one's attitude from self-centredness and selfishness to one of outgoing to the loved one... 2. Obedience to the beloved object once that beloved is known. This has been called in some translations "complete obedience to the Master" and this is the true and accurate translation but in view of the fact that the word Master connotes (to the occult student) one of the adepts, we have chosen to translate the word as "Ishvara," the one God in the heart of man, the divine Jiva or "point of divine life" at the centre of man's being. This is the same in all men, whether savage or adept; the difference only lies in degree of manifestation and of control. Complete obedience to any guru or mahatma in the sense of complete subjugation of the will is never taught in the true science of yoga. Subjugation of the lower man to the will of the inner God is taught and all the methods and rules of yoga are to this specific end. This should be carefully borne in mind. "Spiritual reading" is the most significant and occult preliminary thereto."
January 1, 1970
https://en.wikiquote.org/wiki/Yoga_Sutras_of_Patanjali