While a career is a mode of making a living and contributing to the earthly welfare of the human community, a vocation is a call from the Divine Persons to a way of life. It is a beckoning, an invitation to give oneself totally to another person in accordance with the divine plan. Superficial writers and speakers could have thought of the idea of a temporary vocation only because they were not thinking of vocation at all. They were thinking of a career, an impersonal commitment to a job to be done. To be head over heels in love as a divine invitation seems to have escaped their vision of the evangelical counsels.
Fr. Dubay

The Marvelous Power Of The Cross | Pope Leo The Great
Our understanding, which is enlightened by the Spirit of truth, should receive with purity and freedom of heart the glory of the cross as it shines in heaven and on earth. It should see with inner vision the meaning of the Lord's words when he spoke of the imminence...