the 13 principles and this chapter of the book ends with these words through some strange and powerful principle of mental chemistry which she has never divulged nature wraps up in the impulse of strong desire that's something which recognizes no such word is impossible and accepts no such reality as failure the second principle is faith you never would have even thought of your main desire unless faith were tugging at your mind and if you find it difficult at times to have faith in yourself you can be certain that you can have faith in