I think this dream has a very positive message for you: I agree with the comment about salt being a preservative. Followers of Christ have been portrayed as the, "Salt of the Earth," and so off the top, I think you and your husband are among those.

Land is valuable, nurturing, stable, grounding, enduring, and is often synonymous with "home." It would seem that whatever you have been thinking or talking about doing in your spiritual development, is being encouraged, and you are being shown what has real, lasting value, which is different from what most people may think, because you have "eyes to see, and ears to hear," and God is showing you your right direction and Who to listen to, as well as the outcome you can expect.

Since dreams can be understood to have multiple levels of meaning, perhaps you are also thinking of buying land, or moving, or making some other changes, and if so, the same message applies.