Satan, the Snake, wants to be god himself.   He wants to rule as a god.   For this he needs servants, angels like him, and finally men to dominate.

God gives his creatures a habitat, an area of freedom.   He wants to be loved by his creatures, and He wants them to accept His order.

Satan is then quite different: He commands and expects obedience.   The nourishment of his soul is the tribulation of his subordinates.

The nourishment of God is the adoration of his creatures.

Satan wants men as his property.   How can he achieve this?

This is the principle: Because God is a holy God he tolerates only creatures, who respect his order. Therefore Satan misleads men, to violate God's order.   To sin.

And then he accuses men before God.   God then has to judge, because there is an indictment.

"Satan" means "prosecutor".

And in order that he can mislead men easily, he does manipulate their souls with envy, greed and aggression.   Now they are vulnerable for sinning, they are easily mislead, they will be accused and sentenced - and expelled.   The holiness of God does not accept any sin.

By this men would get lost to God - in case they would not recollect themselves in their own judgment.

 There is a possibility for repentance.   God has given men the freedom to reverse.

The man in his sin is not yet Satan's property.   About this issue the final decision will be made in the Last Judgment.