I first became interested in permaculture many years ago. Bought Bill Mollison's book and studied it closely. I must dig out that book again, haven't look at it in years.
What I liked about the system was it's fexibility and adaptability. Generally it runs 'hand in glove' with organics, biodynamics. and alternate living. However, you don't have to go "all the way". It's easy to adopt and adapt aspects of the system to suit your lifestyle and circumstances. The general principles are what's important. It's all about intergration of yourself with nature. And getting nature to work for you.