The second sentence "nebula" is the key word. The hunter may be in adversity, and the implication of "nebula" may be the breakthrough point to break through the predicament. The moon shines on him. In the quiet mountains, he finally found the breakthrough point "a flash of happiness" by meditating alone, as if "telling each other" was actually his own solution to the sorrow in his heart.
(I wrote the content and feelings together. . Hehe)