The teacher is at peace because he is standing as the background. Just as the movie screen is at rest, whether a movie is playing or not. The teacher is resting in understanding, no matter how animated he may appear.
The teacher is aware that nothing is happening. This is the truth. Standing as awareness, the pure background, everything else is just the dance of appearance. The fundamental, pure I, remains unchanged.
The teacher knows that whatever appears to be happening, changes nothing. His stand is in the absolute. All that appears to be happening can be enjoyed, but it changes nothing.
The understanding of the teacher is not personal. For seekers to place the label of "enlightened" on the teacher is misplaced. The teacher is an appearance as well, and can't claim enlightenment.
Seekers only lack the simple understanding of who they really are. If they understood, they would know that there is no difference between them and the teacher.
Satsang is really a comedy of errors. The teacher knows where all the questions are coming from. Their fundamental error is all the same. That is why many sages proclaim that "The answer is in the question."
All the teacher can do is answer the questions until the questions stop. And the comedy is, that once understanding dawns in the seeker, the seeker disappears as well, having fallen into the impersonal himself.
Nothing has changed, only understanding has dawned. The play goes on. The ordinary continues. There are ups and downs, but rest is there, and questions don't need to be answered.