horizon; where sky meets earth
Literary or poetic term for the distant line where the sky and the earth appear to meet. Not an everyday word; 地平線 (ちへいせん) is the common modern equivalent.
The sunset sinking into the horizon is beautiful.
詩の中で、彼は空際を「天と地の接点」と表現した。
In the poem, he described the horizon as 'the meeting point of heaven and earth'.