Ephesians 5:11 And have no fellowship with the unfruitful works of darkness, but rather reprove them.
 
" elegcho"  which means reprove, rebuke, convict.
 
If we are ignorant of the workings of darkness, how can we reprove them? The occult for example has heavily invaded many churches. An example would be soaking prayer, or also known as contemplative prayer. This is transcendental meditation, which has been practiced in yoga, and hinduism for thousands of years.
By repeating a mantra like "ohm" over and over until you reach an alpha state of consciousness. Except in the "christianized" version, you say Jesus, or some prayer, over and over again.
 
This is in direct disobedience to the instruction of Jesus. Matthew 6:7 But when ye pray, use not vain repetitions, as the heathen do: for they think that they shall be heard for their much speaking.
 
As a christian I believe we should always be informed, and by being informed; we can expose the workings of darkness.