Can refer to a goal you have. What are you aiming for right now in your life? How well or how poorly you are bowling reflects how well or how poorly you are achieving that goal.
Whenever a particular sport is in your dream it is always good to look at the terms used in that sport and see if they apply to anything going on in your life. For example: are you dealing with “a split” in a relationship? Are you feeling “knocked down?” Or “in the gutter?” Do you need to “spare” some time for your family, etc.