Think of it. Here Dr. Mahadevan deals with some definitions, and next goes on to say that his topic of investigation by such definitions, is not covered anyway. It's not much to kick your own legs so that you fall on a slippery terrain, either. You can't have it in both these way. If you say you can't define a thing, refrain from it in the first place, even if your bigwig chapter in works such as The Cultural History of India is amply shortened by it.
Deep things require deep ponderers.
It's the gullible and good guys that may get outsmarted by peacock songs. Man's Eternal Quest. Los Angeles, 1975. Autobiography of a Yogi. Los Angeles, 1971.