Autumn
To dream of autumn represents your feelings that a good time is over. The best part of a situation or relationship is finished. Life doesn't feel as good as it did before. The sunniness or pleasure of life is gone.
Negatively, autumn may reflect your feelings that rough times are ahead. Feeling that a situation can only go downhill or get worse.
Example: A man dreamed that it was autumn outside. In waking life he had an amazing time at a spiritual retreat and felt his life was going to be boring now that it was over.