The journey of ascetic life;
the journey of life of a person, free from the fetters of sensuality, worldy possessions etc.
iccevaṃ samuṭṭhie ahovihārāe....ahovihāraḥ... viṣayaparigrahādeḥ bandhanaṃ chittvā ye jīvanayātrāyāṃ prasthitā bhavanti.
(Ā Bha 2.10)