From Saul's perspective, David was summoned to play the music of the harp to soothe him.
From God's perspective, I think it was a way to get Saul to know David, and it was the beginning of the plan He had for David.
The things that keep me from learning from God in the midst of circumstances is leaning toward my own knoledge, understanding and wisdom in what I should do. And, I don't always ask Him..."we have not, because we ask not".
Being fully open to listening to God and asking Him in every circumstance what I should be learing from it.