taru-adjective, adverb taking the 'to' particle
Obsolete literary term describing something immeasurably vast, such as the ocean or sky. Used as a taru-adjective or adverb with と.
See also: 渺々
In classical texts, it is used like 'the boundless ocean'.
vast; boundless; endless
boundless; vast; limitless · faint; hazy; dim; indistinct
The kanji 渺 is composed of 氵 (water) and 眇 (minute, far), suggesting a vast expanse of water. The reading びょう is the on'yomi. The exact historical derivation is uncertain; the character is used in classical Chinese and adopted into Japanese literary vocabulary.