It is one of our most cherished privileges to be able speak to our heavenly Father on all occasions and in every circumstance without having to make an appointment or wait our turn. Praying in the Spirit means that we are to pray with spiritual understanding and affections. This is only possible when the Holy Spirit opens the eyes of our understanding and lights the fire of our affections, so that we can pray as we ought to pray. It is the Holy Spirit who awakens us to our need, and then intercedes for us to secure the will of God with reference to our need. The Holy Spirit also enables believers to exercise the graces of humility, faith, love and hope, so that our prayers will be more than just fleshly whinings.
Perseverance implies opposition.
The world, your flesh, and the devil, oppose your prayers and constantly conspire to try to make you give up praying. You and I must to pray with the conviction that God loves to give good gifts to His children, and with the confident expectation that He will surely give us what is best, when it is best. Prayer is the exercise of faith. So if you have quit praying, it is because you have already quit believing. One of the best ways that you can demonstrate your love for others is to faithfully pray for them.