The source of the name “HEKIKAI SEIDO O MIGAKU” refers to the phase from a classical Chinese poem. The piece is made by using a hand-forming technique and sculptural process of trimming, which is the traditional style of Raku ware. This is a thin, shoe-shaped tea bowl. The area of a belt-shaped line is coated with a cobalt glaze. It looks as if boundless ocean. The area from the low hip to the trimmed foot flashing on a light cobalt glaze looks like not only blue water spray but also a bronze. The rest is painted with a chromium, a black glaze. The notched lip is hardly trimmed with a fine spatula. This work is one of the “Day Voyage” series.