When people try to flee from the Sitra Achra [Dark Side] they often end up in some greater evil.
This happens because the great evil disguises itself in elaborate ritual observances in order to seem kosher. 

For this reason I have stressed the importance of learning the Avi Ezri of Rav Shach so as to have a good idea of what the Torah actually does require of you.

It seems to me that although the Ari [Rabainu Isaac Luria] and the Remak (R. Moshe Cordovaro)were great tzadikim, even so,it does seem that their teachings tend to led into a grey area between what is Okay and what is idolatry, seeking the dead, necromancy, kishuf using what are called unifications but are really identical with incantations.