The idea for the design has its roots in Tibetan Buddhism.
"In 1997 Tibetan monks came to Whanganui to do a sand mandala at the Sarjeant Gallery ... It was a pretty special thing.
"They did it over 15 days and I remember going to watch them do it. That's where I got the idea from."
While sand mandalas are all about creation and process, with the work destined to be destroyed upon completion, Maiangi wanted to engage in a similar process but make her completed work a permanent thing, or as permanent as possible.
That was 20 years ago. Now she is a kindergarten teacher at Te Papa in Wellington.
Recently she returned to Whanganui to visit her mother and "hang out with my young daughter" and thought she'd check on her mosaic.
Seeing it was in need of repair, Maiangi left a note for Sonya Mathias, Mischief owner, asking if she could restore it. It wasn't lost on her that the mosaic was now 20 years old. Sonya bought the paint and has plans to put a protective covering over the wall.
Now, the large, circular, mandala-inspired work of glass, tiles and broken crockery has been completely repainted and restored by the artist who created it.
"It's beautiful," says Sonya. "I hope it's still here in another 20 years."