The dream symbol of a zero has an infinity meaning. In the dream you see a zero, this shows that you are free and independent person. But a zero as a circle has a negative meaning in the dream, this may show that you are moving in the same and not interesting life circle. You do not have any ability or opportunity to open the circle and to create new life.
Dream dictionary: zero dream meanings
The number zero indicates commitment, infinity and the circle of life. The other explanations indicates the cold emotions because of the low number.
Power and fortune.