The Divination wizard's Portent feature description (PHB, p. 116) begins:
Starting at 2nd level when you choose this school, glimpses of the future begin to press in on your awareness.
Most of the discussion online seems to be about the dice roll mechanics of Portent.
What are the implications of "glimpses of the future begin to press in on your awareness" in terms of non-combat storytelling?
Also, how does this change at level 14 (when the wizard gets a 3rd Portent die)?
It seems like there's a lot of potential to provide some tantalising hints of the future, yet at the same time creates significant challenges due to player agency (not that an adventuring party has upset the carefully laid plans of a DM, ever).