Love is life's greatest joy and greatest healer. Romantic, brotherly, and humanitarian love all bring great joy to the major characters in the play after they abandon their ill feelings for one another and open their hearts.
Love is a many-splintered thing. Although love triumphs in the end, all of the lovers—except Theseus and Hippolyta—undergo trials that divide them.
Fortune and Nature often work at odds. See "Imagery, Extended Metaphor, Act I."
Nature heals. Notice that everyone who enters the forest becomes better for the experience. Shakespeare used the "nature heals" theme in other plays as well, including A Midsummer Night's Dream, Love's Labour's Lost, and The Tempest. But nature does not always behave well in Shakespeare. King Lear found that out during a raging storm, and Macbeth fell victim to the trees of Birnham Wood.
All is not what it seems. Rosalind and Celia disguise themselves, fooling everyone. Duke Senior, branded an outlaw, is really the rightful ruler; his brother, the usurping duke, is really an outlaw.
Imagery: Extended Metaphors
Extended Metaphor: Act I
.......In extended metaphors in Act I, Shakespeare personifies Fortune and Nature in order to convey a central theme of the play: that Fortune and Nature often work at odds. For example, Fortune may bestow such gifts as wealth, position, and power on a person simply because he was born into the right family. However, if he lacks certain gifts of Nature—such as nobility, foresight, courage, and wisdom—he will not have the wherewithal to manage his material gifts properly. On the other hand, Nature may bestow a bounty of gifts on a person whom Fortune has ignored. This person will have the faculties to make his way in the world but not the material gifts to succeed without a struggle. The extended metaphors, in the form of personifications, occur in Scene II in a discussion of Fortune and Nature between Celia and Rosalind: