Trusting God for outcome of prayer

Christians send their prayer requests to God, sometimes they don;t seem to get a response. This can be disappointing and frustrating. However God does answers all our prayers, sometimes is yes, no or wait. God already knows in our heart even before we pray. God is never busy to answer our prayers. Prayer is important to christian as it is communication with God to express themselves. God sometimes does feel hidden from us or doesn;t not seem to be there, but God is always there right in front of us, sometimes God hides from us to test our faith and strenghten our relationship. Be patient, God always answers our prayers.