I dont get this golf quote?

whats key is that this refers to anything on the golf course 'good' or 'bad'! he is telling us not to attribute one shot to another - the detachment allows one to approach each shot as the single event that it is. Without the added emotional expectations based on how great or how horrible we 'feel' a previous shot was. i.e. you are not playing a round of golf on the first tee, rather one shot, followed by another, and then another, and so on.