There are thousands of symbols, and it depends upon the context of one's own personal dream as to what they all mean for him / her. Look at it this way...a dream is like a puzzle, and although there are several pieces that are quickly pieced together because they are so obvious, the puzzle isn't complete until all the pieces are placed together bit by bit. Then you have the complete picture...until then, you-ll only have disjointed images that don't add up to anything coherent, and you'll still be confused..
Symbols in dream interpretation are just one piece of the puzzle. Each piece / symbol fits together and makes a complete picture. The entire dream tells the story, not just 1 or 2 symbols picked out of it, and each individual will have different nuances affecting the dream...such as daily influences perhaps integrating into the dream. For example: let's say you saw a movie yesterday about a vicious grizzly bear and it was frighteningly graphic, and then later that night you dreamt about a bear. This would be less meaningful than if you suddenly had a dream about a bear one night, without prior influences. That could be entirely different.
When interpreting dreams, the first thing everyone should consider is the typical universal meaning of the symbol / dream image. For instance, death symbolizes the end of something that's ready for change, and a new beginning. Most people start out highly resistive to changes of any sort, and see any upcoming change in their life as something foreboding and scary. Death dreams are usually about change.