See Spell and Magic.
To dream you are using incantations, signifies unpleasantness between husband and wife, or sweethearts.
To hear others repeating them, implies dissembling among your friends.
Hearing incantations has an unfortunate significance. It means quarrels to come between lovers or inside families.
If you dream that you are yourself repeating incantations for some ulterior purpose, it betokens an opportunity that you will have for an underhanded act which will bring you temporary success.