Prayer is not a hard requirement - it is the natural duty of a creature to its creator, the simplest homage that human need can pay to divine liberality.
Charles SpurgeonThere is no other place where the heart should be so free as before the mercy seat. There, you can talk out your very soul, for that is the best prayer that you can present. Do not ask for what some tell you that you should ask for, but for that which you feel the need of, that which the Holy Spirit has made you to hunger and to thirst for, you ask for that.
Charles Spurgeon