expression, noun
drop in the bucket; drop in the ocean; a tiny fraction of the whole
Idiomatic expression emphasizing extreme insignificance compared to a vast whole. Often used in formal or literary contexts.
彼の寄付は滄海の一粟に過ぎないが、それでも助けになる。
His donation is just a drop in the bucket, but it still helps.
この問題に比べれば、私の悩みなど滄海の一粟だ。
Compared to this problem, my worries are just a drop in the ocean.
Similar meaning (a single hair from nine oxen), also expressing insignificance, but less common than 滄海の一粟.
From Chinese classical literature; the phrase likens a single grain of millet to the vastness of the ocean, emphasizing extreme smallness.