The word 'Angel' is taken from the Greek word 'Angelos' which means 'Messenger’. Angels are sent to us as Gods messengers. The very act of receiving a messenger from God proves that he exists, knows us, loves us and has a plan for us. Sometimes Angels are sent to us with a specific plan that we are to carry out, it could be a pathway he wants us to follow or a situation he wants us to resolve. One thing for sure is I’ve never read of anyone saying, “No” to an Angel. The Angel may stay with you to help you carry out your actions. They are often sent as helpers to guide the way or guide us through the most trying times of our lives. When Angels visit us, they will do so in a spirit of love. They accept no glory for themselves, they give glory and praise to God.
Angels are like us in some ways and very different in other ways. In Ancient times Angels were mostly depicted as men with huge wings, halos and surrounded by a white light. As time went by, we see more and more Angels depicted as females. Angels can experience a range of emotions from happiness to sadness, they can sing, dance, fly, and they are able to reason and think. Angels belong to specifically named groups, in a kind of Celestial Hierarchy, consisting of Nine Orders.
There are many good books that you could read about Angels, Choirs of Angels, and the Celestial Hierarchy.
They speak to God directly and tell him when they think we need more assistance in carrying out the tasks we’ve been assigned. They have compassion for us and provide great assistance and often appear in the role of our, “Guardian Angel”, our very own protector. It doesn’t matter if you believe in God or not. There is no requirement for you to be religious or a member of any kind of religion. They show us God’s unconditional love. Those of us who have a strong sense of spirituality usually believe angels are real, and may experience their presence.