Your attitude controls your life! It defines your world by determining your level of happiness and who and what can enter into it and when. So be aware that both a negative and a positive attitude or way they you usually think can become a habit that is hard to break, and--it is self-fulfilling.
(Numbers 21:4-9; Proverbs 4:23; 23:7--NKJV; Philippians 2:14-16; 4:8)