what is Anne's advice when one is reeling under melancholy?

From the text:

'This is where Mother and I differ greatly. Her advice in the face of melancholy is: "Think about all the suffering in the world and be thankful you're not part of it." My advice is: "Go outside, to the country, enjoy the sun and all nature has to offer. Go outside and try to recapture the happiness within yourself; think of all the beauty in yourself and in everything around you and be happy."'