I have started some study on prayer and found a website with sermons by Charles Sturgeon. I love the idea of prayer being two-sided just as is any conversation. We often pray and may find ourselves wondering if God has heard us. The truth is He is always responding but are we truly open, ready and listening.
Prayer is a telephone by which God speaks in man. His Heaven is far away but His voice sounds in our soul! Prayer is a phonograph—God speaks into our soul and then our soul speaks out, again, what the Lord has spoken! Conversation must always be two-sided. God speaks to us in this Book—we must reply to Him in prayer and praise. http://www.spurgeongems.org/vols22-24/chs1412.pdf
John 15:7 If you abide in me, and my words abide in you, ask whatever you wish, and it will be done for you.