"That's David, when he feels it - I think every player gets hot at some point and they feel good about their game and feel confident about their game," said Bruins coach Claude Julien.
"I think that's what David is right now, feeling confident and the way he is right now. You take advantage of it. Cross your fingers that it can last as long as it can. When he's at his best he's one of the better players in the league."
Krejci has eight goals and 16 assists for 24 points this season, which ranks third on the Bruins behind Brad Marchand and David Pastrnak.
"I'm feeling good lately," said Krejci. "Not just because the points are there, but just the way I feel in my skating. Just happy where I am right now and hopefully I can keep it going.
"Every time I get my legs going, everything kind of comes easier. I have to make sure I prepare every game that I got my legs. If I do that, I'm a pretty good player."
Despite losing one of his wingers early in the Buffalo game, after David Backes left after taking a hit to the head, Krejci's game did not dip. To Julien, Krejci's performance was a clear sign of his ability to lift up the players around him.
"David's feeling it right now," said Julien. "It doesn't matter who's with him. People say 'He needs this winger, he needs that winger.'
"David doesn't need anything, David, when he's on his game, will make everyone around him look good. That's how good David Krejci is."