You can think of destined as a road that has already been laid down in front of someone or something. The walking has not happened yet, but the route is drawn and the end of it is already decided. Sometimes that road runs through a whole life, and the end of it is a career, a meeting, or a failure. Sometimes it is much shorter and much more ordinary: the road is simply the route printed on a ticket or a shipping label, and the end of it is a city. Both uses share one idea — the going is still ahead, but the direction is no longer open.
Two branches
已經定好的未來
這一組直接用那條鋪好的路：路通向一個人未來會變成什麼、會遇到誰、會有什麼下場。差別只在位置和語氣，一個放在 be 後面講預感，一個放在名詞前面講故事。
adjective · B2
If a person or thing is destined for something, or destined to do something, that future seems certain — it feels already fixed, even though it has not happened yet. This meaning comes after the verb, not in front of a noun.
註定
要送往某個地方
把那條鋪好的路縮短、拉到地圖上，就成了這一組：路線還是先定好的，只是這次寫在機票、航線表或貨運單上，終點是一個城市或一間倉庫，跟命運無關。
adjective · B2
If a plane, ship, train, person or load of goods is destined for a place, it is travelling there, or it has been sent or set aside to go there.
前往；運往