Create an illustration featuring eight diverse hands interlocking in a circular pattern. Each hand should display different symbols representing various philosophies, such as a yin yang, an anchor, a lotus flower, and a tree, among others. In the center, include the text "Celebration of Beliefs" in a bold, modern font. Use a vibrant, gradient background transitioning from light blue to green to convey unity and harmony. Adjust the skin tones of the hands to reflect a broader range of diversity.