Then I was introduced to meditation and yoga. I was given a practice for letting go of thoughts and focusing my mind on the present. When sitting in meditation or doing a yoga pose one brings one's attention to the present. It is quite a blissful experience to fully arrive in the present you know. I often tell yoga students to leave their shopping lists at the door in their coat pockets. The "to do" lists and expectations can be put on hold until after practice. This is generally a good practice for any contemplative art. There is however, a serious potential pitfall.
The pitfall has to do with perfectionism and taking sides against thoughts. While we direct our attention to the present, it does not have to mean that suddenly we are against thoughts. The grocery list may still come up in your mind while practicing. A mistake people make is to then judge themselves as "bad meditators" or "bad yogis" just because they shopping list arises in their minds. The practice is not to shut off and shut down the mind. The practice is to allow the space for the thought to arise, to see it and also let it go. If that is allowed to happen then there is no judgment necessary. It takes relaxation.
So what has changed since I started this practice 20 years ago? I still think about what I have to do, what to get at the store. Maybe its just that I am content either way. I found myself thinking about what groceries to get at the store yesterday in class and giggled. With relaxation comes a sense of humor. If you are trying to make it "perfect" chances are you will find yourself way too upset about something that is just an ordinary thing.