If devils are only our own thoughts, why does exorcism work where psychology fails?
They tempt our thought process. When it comes to posession or oppression I do not think many people at all know what exactly is going on.
Catholics often refer to the **Letter to the Bishops of the Catholic Church on some aspects of Christian Meditation **– but then skip over that it acknowledges:
That does not mean that genuine practices of meditation which come from the Christian East and from the great non-Christian religions, which prove attractive to the man of today who is divided and disoriented, cannot constitute a suitable means of helping the person who prays to come before God with an interior peace, even in the midst of external pressures.
And yet dangers can be anywhere. The letter begins wiht errors in the early Church (cf. 1 Jn 4:3; 1 Tim 1:3-7 and 4:3-4) and “subsequently, two fundamental deviations came to be identified: Pseudognosticism and Messalianism”
Eastern forms do not have the monopoly on dangers. Any time there is the risk of Christ being subordinate to any method, experience or other goal there is danger.
Danger to believe that out own efforts bring our salvation; danger to believe that our faith eliminates any need for effort on our part.
Danger that we stive to extingish our very self through some immersion in the indeterminate abyss; danger also that we place God within the box of our own favorite limiting images. Danger of ego extinction & danger of ego inflation.
Danger that we make our feelings the sole criteria of spiritual progress; danger that we think we have it all figured out intellectually or have the elite knowledge.
Danger to think we can control God’s action by any technique or prayer.
Danger of believing one is God; danger of failing to acknowledge God in others.
Yes, there are many, many dangers everywhere the human heart can wander. The devil wants us to sin. S/He needs our free will for that.