I think the image respresents a building. This building could be a home or a place of worship. It would represent protective walls surrounding the person from the bad things outside of the walls in the world because a home or place of worship is a place where you should feel safe and loved unlike the uncertainties of the outside world.
Dull (dingy yellow represents caution, decay, sickness, and jealousy. White means safety, purity and cleanliness. Dark red is associated with vigour, willpower, rage, anger, leadership, courage, longing, malice, and wrath. Source: http://www.color-wheel-pro.com/color-meaning.html