Look closely at a claim that appears on the Web site of the Understanding Principles of Better Living Church and, most interestingly, is also offered by the minister of the Unity congregation. They both claim to teach how to think, not what to think. This statement implies that the groups offer no doctrine, merely a route to transformed thinking.
But the claim is false -- and must always be false. The distinction between how to think and what to think is artificial. It is sloganeering and advertising, not serious thought. Every pattern of thinking is based on certain presuppositions and leads to certain conclusions. A pattern of thinking that begins with relativism as a presupposition will inevitably (if at all consistent) lead to relativistic conclusions. In other words, when it comes to thinking, there is no how that does not include a what.
You cannot begin with the presupposition that you are the center of the Universe and then reason to conclusions that are in any way consistent with the Bible. You cannot get from the presupposition that you are a sinless victim of negative thinking to the conclusion that the cross of Christ is the answer to our deepest need. You cannot reason from the presupposition that you can cope with all your problems by the exercise of positive mental imagery to the conclusion that your greatest need is for a Savior. The how is a what when it comes to thinking about anything of importance. (more)