St. John Climacus: When the soul betrays itself and loses the blessed and longed for fervor...
When the soul betrays itself and loses the blessed and longed for fervor, let it carefully investigate the reason for losing this.
And let it arm itself with all its longing and zeal against whatever has caused this. For the former fervor can return only through the same door through which it was lost.
St. John Climacus
