Author Jentezen enlightens us that "fasting is a constant means of renewing yourself spiritually". It allows you to escape from the monotonous routines of life and you are literally offering yourself to God as a living sacrifice!
I've noticed in my own life that there is a parallel between my physical and spiritual life. "Fasting stirs a hunger in your spirit that goes deeper than the temporary hunger you experience in the flesh"
Consider for a moment the person who eats tons of junk food on a daily basis, this person is malnourished because even though they are obese, they have not been eating the right thing. In the same way, we can be overloaded with church activities and still be undernourished concerning your real relationship with God! Fasting can reverse this! Matthew 5:6 states "Blessed are those who hunger and thirst for righteousness, for they shall be filled"