I didn't mean learning T'ai Chi from the book so much as that the author lists reasons for difficulty meditating and gives advice on how to improve meditation(as well as rundowns on different kinds of meditation). The author doesn't suggest T'ai Chi only, just exercise in general to aid in meditation.
Yeah, you didn't say that, but you didn't say the opposite either, so I just wanted to advise against it. No offense meant. I've taught Taiji Chuan and I can't imagine a beginner learning only from a book.