User blog comment:ImperiexSeed/The oldest being, archangel or leviathan?/@comment-77.103.230.159-20120512163755/@comment-3045936-20120512202659

The Heavenly Connection or the Connection to the Home Office as Meg put it. Removes healing and resurrection powers from Angels. It also makes it not possible to teleport back to Heaven. The connections gives Angels more power, but they still have some but are left in a weaken state. Archangels as confirmed to the last Salute to Supernatural for season 5 possess stronger uniques graces that the only thing the Heavenly connect to Heaven gives is the ability to go to Heaven. As that was why Lucifer didn't just return to Heaven when he got out.