His parents believed that the priesthood was his 'destiny'. [=that he would or should become a priest because fate or God intended it]
They were living in a time when expansion to the Pacific was regarded by many people as the 'Manifest Destiny' of the United States.
She felt that 'destiny' [='fate'] had decided that she would one day be President.
(..) I believe this man. I always thought they would seek revenge against my father. So let's move towards Repton. I think our destiny awaits us there. HELGA: Tanaruz! Floki, get up! (GASPING) Floki! Hmm? - What is it? (..)2017 TvShow: Vikings Title: On the Eve Season: 4 Episode 19