Angels are spiritual beings that are on a separate and yet parallel evolutionary path next to ours. They are complementary to humans and we can help with each other's evolution. They benefit from our relationship in that they are in a process of descending down through the planes while we are moving up and can learn much with our help. I will refer to them as solar angels as a general term because guarding over us is only part of their job. Angels have a definite purpose to help us follow a spiritual and personal evolutionary path.
Angels appear to some in their full Etheric winged form to bring news or guidance.
Angels are not dead people with wings and lots of time on their hands, rather they are bodiless beings that are on a parallel path and looking to help us and also learn from us. They are on higher planes and learning to descend downwards to our level and we are on the lower planes looking to move up towards their world. Through interaction we improve our lives and it improves theirs in a group advancement and cooperation, this is evolution of the future. They are dual to us and we to them, and we are moving to a point in between us some day where we hope to meet. Most of us know the presence of our own personal Angel by the little voice something like intuition, that fills us in when problems in life confront us.