now the obstacles in life begin with the physical ones, difficulties from heat, cold, hunger, etc, and perhaps sharp words, but then also as luang por chah taught the real patient endurance, the real need to bear with our own moods, our mental states, not to react and respond to the swings of delight and aversion, wanting and not wanting, liking, disliking, judging as good and bad, having a mind which is able to stay even and balanced, using a certain amount of patient endurance.