(Under the sun, in the dark, or otherwise.) In a dream, a shadow represents changes affecting one’s life in the world and his elevation or abasement.... (Shadow)
Your dream mainly consists of these symbols: dark, shadow. For deeper and better understanding it's recommended to read the individual meanings of each symbol. To find out what other interpretations, that are based on distinct character's symbolism, the dream about dark shadow have, click on these links: dark, shadow, or you can search manually by using synonyms of these words.