life's journey; the path of one's life
A metaphorical expression comparing life to a sea voyage. Often used in reflective, literary, or inspirational contexts.
On life's journey, there are storms and there are calms.
Looking back on the path of his life, he felt grateful for the many encounters.
人生 is the general word for 'life' (human existence). 人生航路 specifically frames life as a voyage or journey, adding a poetic, metaphorical layer.
航路 literally means 'sea route' or 'shipping lane'. 人生航路 uses it figuratively for the course of one's life.
Compound of 人生 (jinsei, 'life') and 航路 (kōro, 'sea route'). The metaphorical use of 'voyage' for life is common across languages; this specific compound is a natural Japanese formation.