The purpose of our practice is just to be yourself.
Things are always changing, so nothing can be yours.
The best way to control cow and sheep is to give them a big grazing field.
If you take pride in your attainment or become discouraged because of your idealistic effort, your practice will confine you by a thick wall.
Take care of things, and they will take care of you.
If your practice is good, you may become proud of it. What you do is good, but something more is added to it. Pride is extra. Right effort is to get rid of something extra.