For many CrossFitters, the very word yoga causes the skin to crawl on the back of the neck as the vision of sweaty, half naked, tie-dye hot-panted men dance before the eyes. But yoga isn't all soybeans and nag champa, and a lot of the ancient practice can be incorporated into CrossFit to great effect.
One of the most valuable and translatable parts of yoga is focusing in on your intention before you start moving. Intention can mean simply restating your goals to yourself - to qualify for the CrossFit games, to focus on your form even if it means sacrificing time, to RX the WOD. Maybe your goals are more short-term: to pause for a maximum of 5 breaths during the WOD, or to work on your coachability under pressure - whatever your goals may be, taking a minute to focus your mind on what you want to achieve means you're not auto-piloting through your workout.
Just checking in with why you brought yourself here today focuses your mind and gives you an appreciation for the time you are about to spend on yourself. Maybe this is the only time in the day that you are able to spend time on yourself - so make it count. Take a cue from yoginis everywhere: set your intention before you WOD, and see how it heightens your experience.