"Patañjali wrote when theism was at a low ebb. In modern self-presentations of Hinduism, you would not know that it was ever anything else than devotional-theistic... Nowhere does Patañjali say that “union” is sought with God nor with anything else. On the contrary, the stated goal of his system is kaivalya, “isolation, separation”, the very opposite of “union”, and equivalent with the notion kevala of the atheistic Jaina system. Patañjali accommodates the devotee yet avoids burdening the unbeliever with a requirement to believe.... The proper and intended meaning of yoga in Patañjali’s system is the one suggested by its English cognate “yoke”, viz. “subjection, disciplining, control, restraint”.... Unfortunately, in his word-for-word explanation, Chapple forgets his own translation of this definition and explains yoga as “union, connection, joining”, without problematizing this common interpretation. With this, I must find fault, even if it is the majority view by far."
January 1, 1970
https://en.wikiquote.org/wiki/Pata%C3%B1jali