Sentence:  His religious beliefs provide him with plausible explanations for many conditions which cause him great concern , and his religious <WSD>faith</WSD> makes possible fortitude , equanimity , and consolation , enabling him to endure colossal misfortune , fear , frustration , uncertainty , suffering , evil , and danger . 
Meaning of the word marked with <WSD> tags:  a strong belief in a supernatural power or powers that control human destiny