Original sentence: After he finishes observing those paintings, he finally meets G'mork.G'mork doesn't recognize Atreyu, and speaks with him, giving him, Bastian and viewers exposition about the nature of Fantasia and of Atreyu's quest.This highlights a very important theme of the movie, the conflict between dreaming and reality, expressed by Bastian's drawings of unicorns and other beasts, and his involvement in Fantasia contrasted with the real world as personified by Bastian's father, who tries to get him to "keep his feet on the ground", and his school.This sequence is open to some interpretation
Edited sentence: G'mork doesn't recognize Atreyu, and speaks with him, giving him (and Bastian, and the viewers) exposition about the nature of Fantasia and of Atreyu's quest.So after he finishes observing those paintings, he finally meets G'mork.This highlights a very important theme of the movie, the conflict between dreaming and reality, expressed by Bastian's drawings of unicorns and other beasts, and his involvement in Fantasia, and the real world as personified by Bastian's father, who tries to get him to "keep his feet on the ground" and his school.This sequence is really interesting, and open to some interpretation