Keefe was obviously very happy at the moment. When he commented on his reaction, he revealed what happened in his head at the moment:
"Jubilation.... I don't know, you black out in those moments. You don't know what's going on, you're just really excited. It's been a long time coming. A long time coming for a lot of players in our room, a long time coming for myself, and even longer coming for Leafs nation. So it's a great night."
"Incredibly emotional ... I really just acknowledged the fact that it has been a long road for a lot of our guys. They have been through a lot of s--t to get here to this spot. For them, to get this feeling tonight, they deserve it."
"I am incredibly proud of our group & thrilled for Leafs fans that they get to see second-round hockey. There is a lot more to come."
Keefe's emotions are palpable as a huge weight is removed from his shoulders.
Players, coaches, and fans will clearly remember this moment for a long time.