I read the first page of your link. I don't see anything weird except the talk of channeling which I would MOST definitely not engage in, but the rest of seems fairly straight forward. Which part is unnerving?

If you are prone to spiritual attacks, mental illness, dark thoughts, negativity, self harm, excess worry etc. then you need to learn how to retrain your thought process.

God has not given us a spirit of fear, but of power, love and sound mind.

Also, there are some very real physiological reasons for mental imbalance which usually include profound B vitamin deficiencies and disrupted metabolic hormones, thyroid specifically. Those two in combination can (will) cause psychosis.