The Question and Answer section for Merchant of Venice is a great resource to ask questions, find answers, and discuss the novel.
Shylock dreams of money bags because he is so stressed. I think he fears loosing them,
I am right loath to go.
There is some ill a-brewing towards my rest,
For I did dream of money bags tonight.
Gratiano wants Antonio to cheer up. He says that it is better to play the fool and have laugh lines on his face than be a stern man who scowls all the time.