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The game refuses to let you feel too comfortable. You are reminded every year, multiple times a year, that you should never feel as good about your team as you do when it’s playing well, and you should never feel as badly about it as when it’s playing poorly.

But we fool ourselves every year, don’t we?

It was a week ago — Thursday, June 12 — when the Mets held off the Nationals 4-3 in the afternoon at Citi Field and the Yankees eked by the Royals 1-0 in Kansas City. That shoved the Mets a season-high 21 games over .500 at 45-24. It pushed the Yankees a season-high 17 games over .500 at 42-25.

The Mets led by 5 ½ games over the rest of the N.L. East.