Yongey Mingyur Rinpoche writes in The Easy Middle,

The mind is very powerful. There’s a tremendous strength there, and it makes such a big difference how this mind, this will, this intention is being steered. And everything depends on whether it allows itself to relax and be serene, or whether it allows itself to get caught up in anxiety, grasping, and fear, it makes a difference if you do something with a relaxed, easy going frame of mind, or if you do it in a harried and distracted way.