Satan...

In Islam, Satan is identified as the single angel who, setting
himself apart from all other angelic beings, refused God's command to
bow down before Adam on the day of his creation. When questioned by
the Creator as to why he disobeyed, the Devil answered that he bowed
down solely to the Divine, not to any of the created. Unrepentant,
he also argued that God's will determines all things, so it would not
have been possible for him to refuse God's command unless God himself
had allowed him to do so.
For this, he was banished from Heavan, and was taken away from
the presence of God. No more does the eye of God enlighten him; no
more will the touch of God give him joy.
But in spite of this punishment, he had never lost his love for
God.
He alone, of all the beings in the cosmos, loves God without
gain, without hope, without even the possiblity of feeling loved in
return. Thus, seen objectively, this unrequited love is the most
pure of any. The Devil serves without reward.
Even while bearing the burden of eternal separation, the Devil
has taken on the thankless and usually misunderstood task of creating
obstacles for human beings. What few realize is that, through rising
above these obstacles, we are able to rise to where he cannot go,
stepping over him in our ascent toward our own higher natures. The
Devil toughens us, forces us to remain awake, and offers lessons as
no other angel can. Would we have learned to walk if our parents had
continued to carry us everywhere? Our troubles and temptations, even
if truly given to us by the Devil, are still ultimately gifts of God.

James Fadiman & Robert Frager