What we think and what we believe creates our world in which we live. If we think of our selves as weak, sick, depressed, unsuccessful that will be exactly what happens to our life. If we believe we are not good enough, then we become a good for nothing. We are what we think and believe. If we affirm health, wellness, success and peace, that will materialize depending upon the strength of our thoughts and beliefs. This is universal law.  
Shuddhaanandaa Brahamchari