Why does Gilgamesh and Enkidu go to the Cedar Forrest?

Gilgamesh and Enkidu journey to the Cedar Forest. Every few days they make camp on a hill or mountain to perform a dream ritual. Gilgamesh has five terrifying dreams that involve falling mountains, thunderstorms, wild bulls, and a thunderbird that breathes fire. Despite similarities between the dream figures and earlier descriptions of Humbaba, Enkidu interprets all of the dreams as good omens, denying that any of the frightening images represent the forest guardian. As they approach the cedar mountain, they hear Humbaba bellowing and have to encourage each other not to be afraid.