There is a wide variation as to the meaning of snails in a dream, but the consensus seems to be that they represent personal and/or love affairs.
As a general guide: to see them crawling signifies a long-awaited social achievement; to see one with long horns indicates an unfaithful lover; and to step on one warns of a false friend in your close circle.
If you cooked or ate them in your dream, you can expect a long period of domestic contentment.
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