I think we learned a lot about the tone of the season when the Sox got swept by the Astros and then looked like shit for a few more games and then bounced back to go 6 games up on Cleveland.
I believe this team has strong mental fortitude, especially with how they bounced back from getting swept by Houston... NYY earlier in the year, just to keep winning. But I also dont know that theres a mental aspect in this game I guess.