Motivation is not a constant. In everyday life, you have to be able to tackle a number of professional or personal tasks back-to-back to achieve results. Bodybuilding is one of those things where your motivation fluctuates over time.But sometimes, you get motivated after you've gotten started, which is something that Chris Pratt realised recently. The American actor, whose transformation has repeatedly been used as a source of inspiration, expressed this in an inspiring speech he made on his Instagram story."I had a realization today that I wanted to share with you guys in this vein of motivating one another... It was 38 minutes and 56 seconds into this workout on the treadmill, just walking, uphill, I have a bit of a back issue I’m working through. Right now I’m just walking uphill. About 38 minutes in, it clicked in my mind that I actually wanted to be here."Pinterest - Chris Pratt's Fitness Transformation"You can make that decision to go motivate yourself and do the work, but sometimes the work come first. Sometimes you start the work when you don’t want to do it. And then the want comes after the physical. You can get stuck in a hole where you just don’t want to work out and you never do. Day becomes a week, week becomes a month, month becomes a year, and year becomes years, and you don’t feel good about it."Chris Pratt ends his speech with a message to anyone who needs motivation to get off the couch. "And so I challenge you if you’re in that state where you don’t want to do it, go find the want. It may be 38 minutes into your workout. Once you get it and you feel it, your whole day’s different."