"Mandala" means "circle" in Sanskrit. Mandalas are circular designs that incorporates sections of repeating patterns, symbols, and images built around a central point. They are a spiritual symbol that represents peace, healing, and sacred space. The idea is that when you create your own mandala, you are reflecting something inside of yourself... whether that is your soul, a dream, a goal, or something else.
This is a super basic template with circle guidelines that you can print out to design your own mandala. The circles are faint so that they can help you build your design but won't interfere with your finished mandala too much.
If you're not sure how to begin, start at the center point and slowly work your way out, adding symbols, images, and patterns to each section. You can decide in advance what idea or aspect of yourself you want to convey, or you can just start and see what happens!