On the thread of thought one encounters many knots. How to undo a knot? You take perspectives, look from left, from right, above, below. You think and think and think, fiddle, fiddle, fiddle. Yet no answer comes to mind.
The next step; you ask a friend: This knot I have, what is the answer? They think and think and think, might even give an answer. Does the knot get disentangled? For the greatest knots this does not work, no matter how many answers you will gather, the knot remains.
But then there might come along a man, who will give you peace of mind. A sage who thought and thought and thought for years and years and years, and they will say: This is a knot indeed. And thus you look at your thread of thought again, the knot’s still there. But you feel the thread and it feels smooth.