In 'Into the Woods' the character of Jack wants to do a good thing for his mother by swapping the cow for magic beans, his main objective is to do the right thing for his mother.
Jack relationship is of a son to his mother. Jack's mother is very strict and and grumpy but Jack is more carefree and happy with life
Jack shows emotions by singing about his experiences going up the beanstalk. He feels excited by his meeting with the giants up the beanstalk and shares this with his friend, the baker through songs.
