if you're able to ignore the eastern mysticism and holistic stuff, this book basically details five compound exercises which provide you with an excellent short energetic workout that stimulate and engage all major muscle groups and joints with minimal impact. i've been doing them for a year now and they have provided me with a time-friendly simple-to-use workout programme which sorts me out nicely.
it's important to engage them in a fluid manner and with some intensity of pace in order to stimulate the heartbeat and raise body temperataure, so that you're a bit out of breath by the end of it. if done correctly, you'll feel good because of the endorphins released into your bloodstream by your pituitary gland and hypothalamus (aka the "chakras"). also, the increased blood circulation will speed up the removal of toxins from your body and the plumping up of your epidermis which will lessen the appearance of wrinkles and tighten the skin tissue. furthermore, increased and improved circulation will also also stoke your metabolic rate as blood is pumped to your muscles for nourishment, leading your body to burn fat for more energy.
that's basically all there is to it, no great secret, just five very useful exercises which should be treated as such and no more. no, this will not arrest the ageing process - your body's cells will deteriorate and decay over time and some day you will die, sorry. however, if you look after your body by cutting out the rubbish, eating well and excercising right, there's no reason why you shouldn't be able to keep going hale and strong into a ripe old age.
like i said, a good book for the excercises alone, but if the other stuff makes you feel positive about things, then go for it, it's all good fun. cheers and take care!