I think impatience is a very modern disease of the soul encouraged by the fast life we live. That is one of the reasons it is so very difficult to teach people how to pray, because prayer requires patience. The patience to sit still instead of running off to perfom some task; the patience to keep praying every day without immediate changes in us; the patience to persevere in prayer for those who are ill or in need. This was something the desert fathers recongnised when they taught others .Take this from Evagrius:
Abba Evagrius said: If you know how to practice patience, you shall always pray with joy.