This is a book more to be lived with, than by. If you find that some chapters are beyond your depth, or confusing at first, don't be discouraged. They will probably become clear later with time, background study, personal observation, dialogue with others, experiments and change. Lengthy explanations are avoided so that you can truly discover and understand for yourself. Detailed spoon feeding of this kind of knowledge is counter-productive.
True understanding requires personal effort and time.
The deeper concepts presented in the book require experience of deeper levels of being and Awareness to comprehend. More and more words is not the way. Thinking longer and harder about ideas may not help you understand them. Breakthroughs are more frequently found by taking action to improve your body awareness, or by working to create your energy body. Meditation, practrices and practical experience of all kinds is required.