You can always continue to seek deeper understanding. There may be no immediate application for this understanding, and I speak from experience that seeing clearly in a world of the blind can be maddening—in both possible senses of the word.
And yes, I will acknowledge the conceit underlying my perception that it is others, and not me, who are blind.
But you cannot know too many facts, I don’t think, at least until you become lost to the big picture and purpose of knowing and life.
And you cannot meditate too deeply. You can always become closer to your soul.
So I would say, when all else fails, keep learning and exploring anyway.