Game Sevens can only go one of two ways.
If you're the team that ends up on the winning end, it's the culmination of emotion, effort, and overcoming the trials and tribulations of a team that went the distance.
If you're on the losing end of things, it's flat-out heartbreaking. Everything that went into making the playoffs, the struggle to push it to seven, and the heart-on-your-sleeve style of play just went all for naught.
So when you look at the first round, you can see that there are four series worth of joy and heartbreak that are (potentially) set up for this week, with one a certainty.