When lifting weights, it’s easy to devise a plan to work towards a specific lifting goal, because in order to get there all you have to do is use a lesser weight that you can handle and gradually increase the weight over time till you reach the goal weight. It’s a little more tricky when you are performing bodyweight exercises—you can’t exactly hack off some of your limbs to make yourself lighter, so you really don’t have anything to “work up from.” Thus, without the proper progression plan it can be impossible to meet certain goals. For instance, if you can’t perform a single push-up, how are you going to train yourself to reach a goal of say, 10 push-ups?