Yellow is often associated with fear from a colloquial point of view. This is comes both from the idea that someone who is afraid is a "chicken" (often thought of as yellow in color) and the old saying, "you're a yellow bellied coward". At a very basic level yellow can related to the concept of proceeding with caution, as it is interpreted when seen on a traffic light. From a more spiritual perspective yellow can relate to the mind, whether in its redeemed or un-redeemed state (in the latter case often associated with intellectualism). In its most positive sense yellow is a color related to gifts and hope.
* Symbol meanings provided by www.mydreamstories.com should not be used as a dream dictionary. They are for reference only and both dreamer and interpreter should be careful to listen to the voice of Holy Spirit as to what any particular symbol means in any specific dream.