1. Fasting can be from things besides food, 1 Corinthians 7:3-5
2. Fasting does not make somebody to be holier or more Christianly Mat 6:16-18
3. You should be alone with God for most of the time praising and worshiping Him, but if it is a group fasting and prayer, you should meet together for prayers as often as possible, Luke 11:4; Ps 103:1-8
4. You should confess your sins, repent completely and restitute totally, 1 John 5:14-15; 1 John 1:9
5. You should forgive all who have offended you and seek for the forgiveness of those you have offended, Mark 11:25
6. You should seek for the infilling of the Holy Spirit, Ephesians 5:18;
7. You should refrain from worldly or social cravings, Romans 12:1-2
8. You should constantly meditate on the Word of God, Psalm 48:9-10
9. You should rely on God for answers to prayers and not on the strength of your fasting Heb 11:6
10. Resist all temptations, Galatians 5:16,17
11. Don’t rush into long period of fasting and prayer but prepare well in advance, Ps 103:11-13