Because 16th-century Japan made impermanence impossible to ignore.
But first, one historical qualification: the exact phrase 一期一会 ichigo ichie was probably not coined by Sen no Rikyū himself in precisely the form we use today. Its spirit is strongly associated with Rikyū (1522–1591) and the mature wabi-cha tradition; the formulation was articulated more explicitly by later tea masters. Urasenke itself explains it as: ichigo = one lifetime, ichie = one meeting—the realization that this moment will never recur.
What interests me is why this thought became almost inevitable in the sixteenth century.
1. It arose in a world where tomorrow was genuinely uncertain
Rikyū lived almost entirely within the Sengoku period, the age of the Warring States. Political order was unstable; alliances shifted, cities burned, warriors rose and disappeared, and even powerful men could be dead or ruined very quickly.
Rikyū himself served Oda Nobunaga, and after Nobunaga’s violent death served Toyotomi Hideyoshi. Eventually Hideyoshi ordered Rikyū to commit seppuku in 1591. Urasenke confirms this trajectory from Sakai merchant to tea master of these two successive warlords.
So imagine the phenomenology of a tea gathering:
We sit here this afternoon.
We drink this bowl.
Tomorrow you may be fighting somewhere else.
I may be dead.
This room may no longer exist.
Under those conditions, “we shall meet again” cannot be taken for granted.
That is almost the existential soil of ichigo ichie.
2. And tea transformed precisely in the opposite direction from the surrounding world
Before Rikyū, elite tea gatherings could be flamboyant—competitions, gambling, alcohol, expensive Chinese utensils and conspicuous displays of wealth. During the fifteenth and sixteenth centuries, Murata Shukō, Takeno Jōō, and finally Rikyū progressively transformed this into the restrained aesthetic of wabi-cha.
This creates a remarkable inversion:
outside: castles, armies, gold, hierarchy, conquest
inside the tea hut: four-and-a-half tatami, mud wall, bamboo, water, fire, one flower, one bowl.
The more excessive the outside world became, the more radically minimal the tea room became.
