His tanka "Byosho Roku Shaku" (1.8 meter sickbed), composed from his sickbed without sentimentality or looming shadows, is recognized as a great human document, as he depicted his own body and mind objectively while facing death.
病床の中から『病床六尺』を書いたが、これは少しの感傷も暗い影もなく、死に臨んだ自身の肉体と精神を客観視し写生した優れた人生記録であると評される。