Zen circle or infinite cycle
In Zen Buddhism, an enso is a circle that is hand-drawn in one or two uninhibited brushstrokes to express a moment when the mind is free to let the body create. It symbolizes absolute enlightenment, strength, elegance, the universe, and mu (the void).
Less common today
Enso isn't in the latest US Top 1000. It last peaked at #6,784 in 2022.
US births per 5-year period, 1990βpresent (SSA data).