Read the swirls by standing underneath them and twirling the paper around in the two directions. Experiment with other kinds of swirls. Use a box or pyramid form. Provide an outline of a Yin and Yang. Students write the opposing trains of thoughts in circular patterns that fill up the two opposing Yin and Yang shapes.
More advanced writers can intersect with same letters.
This makes a good class mural or bulletin board project where everyone is writing on the same theme.