The haiku is a traditional Japanese short poem, popular worldwide. https://www.readpoetry.com/10-vivid-haikus-to-leave-you-breathless/ 

Haiku typically celebrate life in the moment, and may express the deeper sense of "wabi-sabi" (侘寂),  a world view centered on the acceptance of transience and imperfection. The aesthetic of wabi-sabi is sometimes described as one of appreciating beauty that is "imperfect, impermanent, and incomplete" in nature. It is imbued with the Buddhist teaching of  the three marks of existence- impermanence, suffering, and emptiness.

(three marks of existence (三法印, sanbōin; also Pali: tilakkhaṇa; Sanskrit: त्रिलक्षण, trilakṣaṇa): impermanence (無常, mujō; Sanskrit:anitya; Pali:anicca), suffering (苦, ku; Sanskrit:Duḥkha दुःख; Pāli: dukkha;) emptiness or absence of self-nature (空, kū; also  Sanskrit: Śūnyatā:शून्यता); Pali: suññatā)

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https://japanobjects.com/features/wabi-sabi

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