Prayer has a huge ebb and flow. When we try to pray, sometimes we walk on water and sometimes we sink like a stone. Sometimes we have a deep sense of God’s reality and sometimes we can’t even imagine that God exists. Sometimes we have deep feelings about God’s goodness and love, and sometimes we feel only boredom and distraction. Sometimes our eyes fill with tears and we wish we could stay in our prayer-place forever, and sometimes our eyes wander furtively to our wristwatches to see how much time we still need to spend in prayer.
— from Prayer: Our Deepest Longing