According to the bagua, the areas of our building or home relate to areas of our life. The areas translate to individual rooms too. If there are compromised areas in a room or home, that life area may suffer. For example, if the part of your office that is the wealth area is cluttered or messy, straightening it up or eliminating the waste could improve things in that area. Adding elements to an area can help too.
Water enhances the chi of prosperity.
Even if you don't have one, you could enact the same ideas by having water be a part of your wealth area or bring it to your door. Sometimes we commit to purchase a property or building for some reason and we find that it may have some unsatisfactory characteristics according to feng shui. Maybe it is an odd or angular shape. That too is undesirable. Think of how a smooth surface lets water or dirt or air flow right over it.