I think a big part (perhaps the biggest part) is adjusting to the new normal. When you recognize that things have changed, you are better able to adapt to what comes next. I talked about this on my podcast here in June: https://www.youtube.com/watch?v=KMWCwJvVwG4 and here in October: https://www.youtube.com/watch?v=7AMT1FeURFk