It was not a speech you’ll later find in a movie. There was no yelling or screaming, no finger pointing or stomping feet. But Chris Kelly had a message for his Ottawa Senators teammates the other day and he spoke from the heart. One of two players in the dressing room who has lifted the Stanley Cup, he talked about the need to keep your mind in small places. “These are great opportunities, these are great moments, and you don’t want to be thinking about the past or thinking about the future and miss out on the opportunity you have right at that moment,” Kelly said Thursday before Game 7 of the Eastern Conference final. “We’re human beings, believe it or not, and it’s easy for us to dwell on the past and to look to the future and think about that. You know, the future doesn’t happen unless you stay in the moment.