GOD speaks to us through HIS written word the Bible and Christians speak to GOD through prayer.
The bible clearly says we ought to pray without ceasing - 1 Thessalonians 5 vs 17
meaning there are reasons why we need to pray as it is our life line.
1)-We pray for thanks giving *Psalms 95 vs 2 *Psalms 50 vs 14-15
2)-To intercede for ourselves and others *1 Timothy 2 vs 1-2
3)-To tell GOD what we need *Philippians 4 vs 6
4)-For deliverance *Psalms 107 vs 28-30 *Act 16 vs 25-26
5)-For peace *Philippians 4 vs 7
6)-To ask our FATHER *Mathew 7 vs 7 *Mathew 21 vs 22 *Mark 11 vs 24 *John 14 vs 13-14
7)-For healing *James 5 vs 14-16 *James 5 vs 16
-For our spiritual growth *Ephesians 6 vs 18 *Romans 8 vs 26
9)-So that we abide in His will *1 John 5 vs 14-15 * John 15 vs 7
10)-For restoration *Jeremiah 29 vs 11-15
11)-For wisdom * James 1 vs 5
12)-For protection * Psalms 91 vs 1- 16
13)-Above all we pray to worship GOD, to glorify HIM and to owner HIM as we talk to Him
*Psalms 103 vs 1 - 22
"Qoute" -Prayer is a shield to the soul, a sacrifice to GOD and a scourge to the enemy.
There is more to the list that I may have left out you are all welcome to add on