Seigaiha is a repeating pattern of waves. Image thanks🙇♂️- https://ksbookshelf.com
https://files.mastodon.social/media_attachments/files/112/749/736/579/142/201/original/358f24b33ded6bb8.jpeg
The earliest depictions of a repeating, geometric pattern of waves can be seen on ancient Chinese maps, where they were used to denote the sea.
Japan would later borrow this design, creating a motif that remains popular to this day.
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