The resolution of the trip through the wormhole is for the Prophets to get Sisko to come to terms with his wife's death. Their inability to understand linear time at this point leaves them puzzled as to why one such as Sisko would 'live in the past'. Near the end of his experience, just as Sisko is wrapping up his explanation of the concept of linear time and experience, he is brought back to the Saratoga with the words:
If all you say is true… why do you exist here?
Clearly Sisko's experience of now is not happening during the Wolf 359 mission; however, his perception of now is ground in the past, in that moment of losing Jennifer.
This shapes recurring character themes for Sisko during s1e1 of DS9 -- it also facilitates the reasoning behind the split in perception for Sisko and Dax. The Prophets manifest reality for both parties that roughly reflect their outlook on life in that moment. Jadzia is open to the experience, and despite her 328 years is not carrying any immediate emotional baggage; her concept of the wormhole is serene. Sisko is pissed to be reassigned, unhappy with his vocation and his life, and he's still probably a bit sour over being face-to-face with Captain Picard who he cannot help but distrust - so his perception of the wormhole is appropriately affected.