"The spell is a spiritual strengthening, a union of man's will with the Will of God. It is a spiritual affirmation, a strengthening of man by the knowledge and fulfillment of God's Commandments.

"Covenant" is the word opposite to the word "curse."

"Curse" is a figurative representation of man's dedication of his physical, intellectual, spiritual powers to serve the Will of God, the Good, the Good of man. 

Negative Meaning. 

"Curse" is a symbol of God's "Judgment", His "Punishment" of man, i.e., man's testing of the consequences of his rejection, distortion, violation of the Will of God.