Two signs mark the person who has arrived at yoga's highest attainment. First: nothing else in the world seems like a greater gain. Not wealth, not fame, not any pleasure. The yogi has touched something that makes every other acquisition look like small change.
Second: even the heaviest sorrow cannot dislodge this person. Life does not stop throwing difficulties at a yogi — illness, loss, betrayal can still arrive. But the one who is anchored in this state absorbs the blow without being displaced. The foundation is too deep to crack.
These two signs are two sides of one coin. On one side, fullness — nothing more is needed. On the other side, unshakability — nothing can take it away. Together they describe a person who has moved beyond the push and pull that governs ordinary experience.