The words of the devil,  Satan, Lucifer, Devil, Beelzebub, Belial, Mephistopheles ... are often  used as synonyms. Other names of the devil or Satan, the prince of this  world, the prince of darkness, the devil, "the Bad", the "tempter", the  chief of demons, the Lord of hell... In Islam, the devil is called Iblis  or Chaytan.
Some considerations and supplements of course,  atheists have no more reason to believe in the devil than God. The Devil  and the "Good God" The coexistence, even peacefully, and to God  Almighty called "Good" with evil (Evil), personified in Satan, does pose  some problems of consistency in Christian theology.
To avoid making  Christianity a dualistic religion where good and evil become two gods of  equal importance, the Church declared at the Lateran Council in 1215:  "the devil and other demons were created by God good by nature but it is  they who have made themselves ill. " Clever way to release God. This is  a weakness of Christian theology and his "God". Let God Almighty can no longer control his creatures, or it does nothing. Impotent or perverse choice.
Symbolic  of Satan for some psychologists, Satan represents man himself and  everything it contains as perversions can lead to destruction. It is  also the symbol of imaginative exaltation,  the principle of evil that man would in itself the most "pernicious" as  "imaginative exaltation" vis-à-vis self, c that is to say, the vanity. 
The serpent of Genesis symbolize the subtle desire rising from the  unconscious. Seduced by the idea of becoming equal to God, Adam and Eve  exalt each other. The serpent of temptation creeps in when the crack  opened by the imagination.
Satan and young The many young people  attracted by the concept of Satan, or even Satanism, really believe that  this person exists? Would it not rather a form of rebellion against  authority whatsoever against the harshness of reality, against the  complexity of a society in which they appear difficult to fit.
Living in  families and often exploded in a world losing its bearings, adolescents  may be subconsciously tempted to look into Satanism coaching structure  and that reassures them.

