Angels take us to the Garden of Eden and introduce us to Eve, several birds and even the serpent.
The birds remind Eve not to go near “the tree” that God told her and Adam not to eat of.
But the serpent was crafty and tricked Eve into eating from the tree. The Angels tell us that because Eve disobeyed God, sin entered into the world and that ALL people would be separated from God because of sin. 

God loves us so much that he did not want us to be apart from Him. So he sent His Son, Jesus Christ,
to pay for that sin
and give us everlasting life with Him.