The 29-year-old told the Miami Herald: "With everybody being under contract and having no tomorrow, it's kind of exciting because we know what we have to do for one and then, two, it's like it helps you focus on what you need to do in that moment instead of next year or whenever."
He added in the South Florida Sun-Sentinel: "We know it comes with the job. We can't do anything about it. We just have to make sure we take care of our business, stay together and just really answer the call to adversity when it comes.
"Everybody wants to know what we're going to do [after the season]. Yeah, I get it. Everything depends on this season. If we win, cool. If we lose, that's when it's like 'What if?'"
The Heat have reached the finals for the last three season, winning the championship for the last two years.