Eden

Eden also known as the Celestial Realm or Heaven within the Supernatural Universe is a Realm of divinity and light. After humans die they go to the afterlife, if that human lived a virtuous life and was a good person then they're rewarded by returning to Eden and reuniting with their loved ones. Eden was originally the home of both Angels and the first Humans until the downfall of Eve and Adam in the Gardens.

Characteristics
Eden is normally shown and depicted as a vast realm of bright light, sand, and heavenly choirs that surround god. These are seen as the center of Eden and surrounding the Choirs are green islands full of grass and vast life. The outskirts of Eden is often lower than the Choirs and islands, this is known as the Outlands within the Realm and where the first Rebellion of God took place.

Lucifers Rebellion
Lucifer was once the most beautiful and strongest Archangel in Eden, he was said to be the perfect creation of god and the most favored son. Lucifer was egotistical however, his own power and beauty corrupted him and made him see himself as an equal to god. Lucifer wanted to share gods throne and wanted all of creation to worship is beauty and power, however Lucifer did not like Gods Creation, Humans, who were in Lucifer's eyes easy to corrupt and imperfect. Lucifer tried to make God realize how flawed Humans were however God did not listen, Lucifer therefore decided to gather angels and followers in a Rebellion of God. He manipulated them easily with his grace and knowledge, he first battled God himself however was beat back to the Outerlands because God was more powerful than Lucifer. Lucifer and his followers waited for the Heavenly Host in the Outerlands to try and beat them back to get to god once again, however they were met with opposition of Michael and his Heavenly Armies. Lucifer was stronger than Michael however what he did not account for was that Michael would have God's gift. Lucifer and his Angels were beaten back by Michael, as they were cast from Eden their graces were stripped through God's power, Lucifer was the only Angel whos power was untouched however it was altered and allowed him to call upon all Demonic Energies. Lucifer and his followers fell from Grace, Lucifer himself corrupted humanity by shapeshifting into a snake and damning humanity by creating a Nephilim with Eve. He'd act as the Ruler of Hell for all eternity.