There is still another five that blend up from those seven and make a total of twelve rays. This gives a much deeper definition to the rays and makes them hard to grasp, which is why science is having a hard time getting a hand on them and defining them. Scientists are only now beginning to touch on the reality of this through Quantum physics and Zero point energy or vacuum energy. The rays are a vast realm in themselves. Angels are within us.
Angels are a part of our lives and can be a tremendous help to our spiritual advancement.
The western mystery schools focus on the Guardian angel that is matched up with us from our first incarnation. The purpose is to oversee and guide our spiritual advancement as well as to help guard us against danger. Our guardian angel is the most important guide to work with and ask questions about our lives. They can provide much better answers to our questions about direction in life than any other guide. One model that is good to look at is that the higher self is a combination of our soul and the guardian angel working together.