How can leaders keep learning and growing?

I had the chance to participate in a project where informal ways of education were practised where the individuals were learning how to lead using techniques like playing on instruments, improvisation, theatre and narrating stories. From my point of view, except from the traditional ways of learning, such workshops are quite useful since they give everyone the opportunity to do totally unusual things in order to come to a solution of a problem. This methods help the leaders not only to grow but also to challenge their perspectives about themselves and the way their leadership is accepted. Also, reading fiction is a must for me. Even though it might be seen as an outdated or even useless idea, it helps you come with new perspectives.