If one were to list, in order of importance, all the enemies of mankind, fear would certainly be near the top of the list. One might even see freedom from fear as the ultimate objective of most of mankind's efforts. Mrs. Eddy recognizes the importance of freedom from fear and gives us in her works the knowledge that enables us to win our freedom from this enemy.
Fear of anything is always the result of a belief in something besides good, God. If we fear death, we are believing in something besides infinite Life. If we fear lack, we are believing in something besides infinite supply. If we fear disease, we are believing in something besides God's reflection, spiritual man. If we fear war, we are believing in something besides the one Mind.
Therefore when these beliefs are banished and replaced in consciousness by the truth and the conviction that God is All and there is none else, fear disappears.