Two grebes swim in a pond where lotus flowers blossom. It is a very simple scene, but the artist has infused it with life and interest. He uses subtle differences of tone to differentiate the upper and lower surfaces of the lotus leaves on each stem and create bowl shapes; the lotus on the right extends upwards, the one on the left folds down. One flower is in full bloom, whilst he other has already begun to lose its petals. As if echoing this contrast, one of the grebes swims forward creating small waves, whereas the other is static, resting its feet. The passing of time, the opposition of movement and stillness, dry and wet, are masterfully expressed.There are several examples of the Water Fowl in Lotus Pond theme in Chinese Song- and Yuandynasty paintings; Sōtatsu appears to have based this piece on such works; his uniquely subdued ink tones, glistening ink color, and soft delicate brushwork have utterly changed the nature of the painting and reinvigorated the motif.Although only Sōtatsu’s seal ‘Inen’ appears in the lower left corner of the picture with no signature, the high quality of the piece leaves no doubt that this is the work of Sōtatsu. The liberal use of tarashikomi (an ink-painting technique in which ink of different concentration is added before the lower layer has dried, creating pooled areas with blurred edges) indicates that it dates from relatively early in his career. Notwithstanding, it is a tour de force demonstrating Sōtatsu’s consummate achievement in ink painting.