classic waka stream

may my lord endure
for a thousand, eight thousand years—
until pebbles small
grow into mighty boulders
and moss comes thick upon them

Meaning
May you live for a thousand, for eight thousand years—until small pebbles grow into great rocks and moss comes to cover them.
Commentary
Book Seven Felicitations

This is a famous poem that later became the basis of the national anthem “Kimigayo.”

“My lord” broadly refers to you, a master, or a sovereign. “Pebbles” are small stones, which “become great rocks,” and “until moss grows upon them” expresses the passage of a very long time. The poem celebrates the long life of a cherished person.

In later collections such as the Kokinshū, it evolved into the form beginning “Kimigayo.” While “kimi” could refer to a beloved or a respected person, from the Meiji period onward it came to signify the Emperor.
Author
Unknown Poet
Source
Kokin Wakashu
Other