Wedding 
To dream of a wedding indicates your life is about to change. An aspect of your waking life is ending, but another is about to begin. In many cases, you may feel negatively about the wedding you see in your dreams. This is typically meant to bring to mind a fear or anxiety from your waking life. You may have some feelings of sorrow, or a loved one may soon pass. Conversely, it may indicate a fear of commitment. Consider your relationships; are you getting ready to take one to the 'next level?' Are you scared to do so?
If you dream of remarrying your husband or wife symbolizes your strong love and faith to each other. Marriage has suited you well. Your marriage may be about to change as well. Are you considering starting a family?
If you are dreaming of planning your wedding, but have never met your future spouse, it is an indication that you have found harmony and balance between your feminine and masculine sides.
Conversely, you may be struggling from a lack of balance between your more instinctive side and your softer emotional nature.
Yard Sale
To dream of holding or attending a yard sale symbolizes the cycle in which you use the lessons and skills from past experiences in your present life. You have learned your lessons' from the past and are using those experiences to provide yourself with a full and productive life.