DICTIONARY
Yearbook - To see your yearbook in your dream represents the old friends or old flames that you have lost touch with over the years. The dream may also serve to bring you back to a time where you had less responsibilities and less worries. Consider if anybody signed your yearbook and the messages written as it may provide some important advice to follow.
Yearn - To dream that you are yearning for something or someone indicates that there is a void that is lacking in your waking life. You are suppressing some old habit or denying yourself of something. What are you yearning for in your dream? You need to fulfill this void.
Yeast - To see yeast in your dream indicates a spiritual quest. You may need to do some soul searching and/or self-improvement. Alternatively, yeast is symbolic of growth, renewed energy or increased enthusiasm for an idea or project.
Yelling - To dream that you or someone is yelling represents repressed anger that needs to be expressed. If you are yelling and no one hears, then it suggests that you are being overlooked in some waking situation. You feel that your voice does not matter or that your opinion does not count. In particular, hearing demonic yelling in your dream means there is something you thought you have left in the past that is still haunting you.
Yellow Bird - To see a yellow bird in your dream represents a positive outlook in your professional life.
Yes - To dream that you are saying "yes" symbolizes reaffirmation or acceptance of a condition, situation or decision. The dream may also be giving you permission to do something that you are having doubts about in your waking life.
Yesterday - To dream about yesterday indicates that you need to stop reliving the past and learn to let go. Focus on the future. Alternatively, the dream symbolizes past regrets.
Yeti - To see a yeti in your dream suggests that you need to learn to find balance between your reasonable, rational side and your emotional, instinctual nature.
Yew Tree - To see a yew tree in your dream symbolizes mourning and death. The dream may also be a metaphor to mean "you", the dreamer.
Yield - To dream that you yield to someone else refers to your willingness to sacrifice your authority in order to maintain calmness in your domestic life or personal relationship. To see a yield sign in your dream suggests that you need to be more flexible in your thinking. Don't be so structured or hard.