The unwise, the faithless and the doubter destroy themselves.
How can they enjoy this world or the next or have any happiness? The seeker should have faith in himself and his master. He should have faith that God is ever by his side and that no evil can touch him. As faith springs up in the heart it dries out lust, ill-will, mental sloth, spiritual pride and doubt, and the heart free from these hindrances becomes serene and untroubled.