Is it necessary to know about the nature of heavenly beings, whether good or evil?

We must consider the following:

A human being cannot explain his own spirit, nor determine its location or size, even though he is certain of its existence and abilities. How, then, can he know the nature of bodiless heavenly beings?

The Bible refers to some of heavenly hosts and describes some of their features to us, although human language is not capable of describing heavenly matters. This is confirmed by the book of Revelation.

The Church Fathers affirm the love of the heavenly hosts for us and believe that Scripture reveals to us those truths about them that pertain to our lives and struggles, in order to kindle the spirit of hope within us.

When we depart from this world, we expect to meet them, to join the choir of the heavenly hosts, and to learn more about them.

The mutual love between them and humans is valuable in the eyes of the Creator.

Talking about them wipes out any fear of death from the minds of both children and adults, for we feel and enjoy their friendship.

It is appropriate for us to distinguish hallucinations or imaginary experiences — whether in dreams or waking — from the heavenly realities of eternal life that is declared in the word of God.

Scripture reveals to us how Satan was exalted before his fall and his persist opposition to God so that we can learn from this lesson, abide in God and understand what God offers us, in order to fight the devil and join the heavenly hosts of angels.