The Imitation says
We could enjoy much peace if we did not busy ourselves with what other people say and do for this is no concern of ours....but we are held too firmly by our passions and are too much concerned with the passing affairs of the world. We seldom completely master a single fault and have little zeal for our daily progress...the greatest and only obstacle to our advance is that we are not free from passions and lusts, nor do we strive to follow the perfect way of the Saints. But when we encounter even a little trouble, we are quickly discouraged and turn to human comfort.
If we strove to stand firm in the struggle like men of valour we should not fail to experience the help of our Lord from heaven....if we rely only on the outward observances of religion, our devotion will rapidly wane. But let us lay the axe to the root, that, being cleansed from our passions, we may possess our souls in peace.