I am reading Crazy Love by Francis Chan and I loved this...
Here is what he said:
Most Christians have been taught in church or by their parents to set aside a daily time for prayer and Scripture reading. It's what we are supposed to do, as so for a long time it's what I valiantly attempted. When I didn't, I felt guilty.
Over time I realized that when we love God, we naturally run to Him - frequently and zealously. Jesus didn't command that we have a regular time with Him each day. Rather, He tells us to "love the Lord your God with all your heart and with all your soul and with all your mind." He call this the "first and greatest commandment" (Matt. 22:37-38). The results are intimate prayer and study of His Word. Our motivation changes from guilt to love.
This is how God longs for us to respond to His extravagant, unending love: not with a cursory "quiet time" plagued by guilt, but with true love expressed through our lives.