“Forced prayer develops hypocrisy, renders a man incapable of any occupation requiring meditation and makes him slothful in everything, even in fulfilling his duties. This should persuade all who pray in this manner to correct their mode of praying. We must pray gladly, with energy, from the whole heart. Do not pray to God only when you are obliged to, either in sorrow or in need, for “God loves a cheerful giver.””
From “My Life in Christ”, by St. John of Kronstadt