You can practice tense or you can practice with ease. Practice ease during challenging and simple movements alike. If you practice tense, say jumping into handstands and forcing yourself into poses that your body isn't able to do easily (ease comes with practice!), you will wind up more tense than when you started. This leads to tense eating habits, most likely reward and over-eating habits. Of course it's a practice. Getting to easy is a practice and probably isn't always perfect. With yoga, and any other activity in life, we have the opportunity to observe without judgment, and then do something about it.