The preliminaries, or the 4 mind-changings, as they are sometimes called, are simple, profound teachings, and of course they are also quite subject to interpretation. Frankly, they can be easy to misinterpret. If you have been steeped, at any level, in any idea that there is a punishing god... if you are ever hard on yourself (which is muggle-speak for 'if conditioned mental-processes are ever hard on you') then it will be easy for those conditioned processes to use these tea