Prayer is ordained by God as a means of communication between God and man. Christians are commanded to depend on God completely for all their needs, hopes and aspirations by bringing all their requests to Him in prayer (Philippians 4:6). In Matthew 7:7, God challenges anyone who believes in Him to ask and they shall receive, to seek and they shall find, to knock and it shall be opened to them. He went further in John 16:24 where He said:
“Hitherto have ye asked nothing in my name: ask, and ye shall receive, that your joy may be full.”
This means that prayer is the means God has provided for Christians to have all of their needs satisfied. For this reason, God did not place any limitation on prayer; He tells us to pray without ceasing (1 Thessalonians 5:17). So, you can continuously approach heaven without any fear of disturbing God.
 
Prayer symbolises trust and total dependence on God. Dependence on God for help with spiritual and physical needs arises out of an awareness of human helplessness (Psalm 18:6, Mark 4:38). The word of the Lord to those who would not pray because they have alternative means of getting things done is found in Jeremiah 17:5:
“Thus saith the LORD; Cursed be the man that trusteth in man, and maketh flesh his arm, and whose heart departeth from the LORD.”
But for those who trust in Him, He sends this word in Hebrews 4:16:
“Let us therefore come boldly unto the throne of grace, that we may obtain mercy, and find grace to help in time of need.”
 
God answers prayers because He is the one who commanded that we should pray, and He cannot deny Himself. Because we have access to God through Jesus (Ephesians 3:12), and because Jesus Himself gave us the assurance that He will do whatsoever we ask the Father in His Name (John 15:16), you can therefore go ahead and ask so that your joy may be full. All power in heaven and on earth belongs to God; He is the owner of all things visible and invisible. He is a loving Father, and He is only waiting to hear from you.

I have experienced instantly answered prayer from God once or twice. That day I prayed for deep and exceptional understanding on a particular issue and I just open my eyes and attempt to solve the problem. Wow I can't believe it, I got the impossible possible with prayer. This changed my sceptical-mind about God and the fact that God answers prayer. To God be the glory.

MY GOD answers prayers