Angels are God's winged messengers. Angels are also beings of light (Usually seen as blue or white dots of light) that use positive energy to help deliver and heal people from their problems. Everyone is assigned an guardian angel before they are born.
To find more about what angels do go here: https://catholicexchange.com/the-20-things-guardian-angels-do-for-us
It is believed, that people that die and do not go to the afterlife are stuck on the earth realm (etheric plane) and their souls becomes everyone but themselves. Also when a human spirit possesses someone, they become the person's soul instead of the person, and make that person everyone but themselves as well. This is known as selling the person's soul.
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