This mini-book was written in the beginning of the "Healing Revival" that lasted from 1945 to about 1957 in the United States and the countries to which the evangelists traveled. Not only does the book give history as to how that revival erupted, but it is ripe with testimonies form the author, pastors, teachers, lay ministers and evangelists alike as to the benefits derived from longer periods of fasting, namely by normal people gaining the Power of The Holy Spirit to put to death the deeds of the flesh, besetting sins and in the salvation and healing of family members and chronic illnesses which hampered their lives and life for God's service... It provides much practical advice on fasting, is mostly founded on the Scriptures, but carries in in an impregnating faith for the power to fast itself, without faith it is impossible to please God (Heb 11:6) and with faith it is possible to move mountains (Mark 11:23-24). Feel free to share the link, it is in the public domain, and may God impart to you faith for not only prayer, but the hidden key of fasting. ONE NOTE -- He has some strange parts about The Four Parts of God, that and other parts are strange... Just let it give you faith for fasting but don't read it through a bunch of times or anything. Read the New Testament : )
http://www.higherlifecentre.com/wp-content/media/2015/11/FranklinHallFastingPaper.pdf
"But this kind does not go out except by prayer and fasting" (Matt 17:21).
"Prayer invokes the aid of God, and puts one's self unreservedly in his hands; fasting subdues the flesh, arouses the soul's energies, brings into exercise the higher parts of man's nature. Thus equipped, a man is open to receive power from on high, and can quell the assaults of the evil one." Pulpit Commentary
"The words are noticeable as testifying to the real ground and motive for "fasting," and to the gain for the higher life to be obtained, when it was accompanied by true prayer, by this act of conquest over the lower nature." Ellicott's Commentary
http://www.higherlifecentre.com/wp-content/media/2015/11/FranklinHallFastingPaper.pdf
"But this kind does not go out except by prayer and fasting" (Matt 17:21).
"Prayer invokes the aid of God, and puts one's self unreservedly in his hands; fasting subdues the flesh, arouses the soul's energies, brings into exercise the higher parts of man's nature. Thus equipped, a man is open to receive power from on high, and can quell the assaults of the evil one." Pulpit Commentary
"The words are noticeable as testifying to the real ground and motive for "fasting," and to the gain for the higher life to be obtained, when it was accompanied by true prayer, by this act of conquest over the lower nature." Ellicott's Commentary