I think we're all used to Convergent practice - 'today I will learn to play this from memory' for example.
Divergent [i]absolutely[/i] includes noodling and exploring. Some people have a down on Divergent activity, because it does not take you measurably closer to whatever your goal might be. However, it can take you to new places, broaden your outlook, and help you discover new sounds and techniques. It's all good!