I've used brainwave entrainment before, and one of the supposed benefits of that is that you're supposed to more easily enter a meditative state when using it. The long-term goal is to meditate with the aid of brainwave entrainment, and eventually be able to get into the same 'state of mind' independent of brainwave entrainment (but your training is supposed to have let you enter that state faster than if you would have practiced meditation without brainwave entrainment).