Desire is one of the most powerful spiritual forces.

It is a basic ingredients for required for operating in the gifts of the Spirit. 1Cor14:1 

Desire is the foundation of faith. Mark11:24 

Unmanaged desires can lead to destruction. james 1:15  

Desires can be from God. Psalms 145:19 Psalms 37:4 

Desires can also be from the flesh. ephesians 2:3 

Desires can also be from Satan or evil spirit. John 13:27