Word origins are very interesting, and useful to understand. In this world you’ll hear a lot about your career. The English word career is derived from the Middle French word "carerer", which was a circular racetrack. (We derive the word careen from the same origin.) You can go very fast in a career, but in the eternal perspective you may not be going anywhere useful.

By contrast, the English word vocation is derived from “vocare” in Latin, meaning voice or calling.

But you, man of God, flee from all this, and pursue righteousness, godliness, faith, love, endurance and gentleness. (1 Tim 6:11-21)

As a prisoner for the Lord, then, I urge you to live a life worthy of the calling you have received. (Eph 4:1)

Follow your calling, men.