Have you ever experienced those moments of dryness?  Some call it a rut that one gets into when things no longer seem to be flowing in their life as it should.  It can be a spiritual rut, a relationship rut or whatever; the idea is things are dry and are not growing as they should.  It is during these times we need to pray for God to water us in the wilderness and to send us rivers when we feel like we are in desert places.