expression
following someone; trailing after someone
Fixed expression meaning to follow someone, often out of admiration or attachment, to a place they are going. Typically used in the pattern 〜の後を慕って.
彼は兄の後を慕って同じ大学に進学した。
He followed his older brother and entered the same university.
弟子は師匠の後を慕って旅に出た。
The disciple set out on a journey, following his master.