also: ぐどう
noun
seeking after truth; quest for truth
Often used in religious, philosophical, or spiritual contexts; the reading ぐどう is especially associated with Buddhism.
彼は求道の旅に出た。
He set out on a journey in search of truth.
求道心が強い人は、常に学び続ける。
People with a strong desire to seek truth are always learning.
Compound of 求 (seek) and 道 (way, path, truth). The reading ぐどう is a voiced variant used in Buddhist terminology.