An overarching topic that appears in all or part of a literary work is known as a theme. It encapsulates the main idea the author intends to get through to his audience. In his play Twelfth Night, William Shakespeare also incorporated a variety of subjects. The following discussion touches on a few of the fundamental ideas of Twelfth Night.

Crazy World:

Through a variety of characters, Twelfth Night depicts the chaotic universe. While Orsino is pining for Olivia's affection, Viola poses as Cesario and courts Olivia. Olivia is distraught and grieving over the death of her brother. 

She doesn't realize Viola is a woman when she falls in love with her, though. Sebastian is married to Olivia who believes he is Cesario. Feste, the court jester, comes across as the most rational in such a jumble of personalities and their interactions. When Viola's brother Sebastian marries Olivia, the devastation is put to a stop.

Love:

The play's ending, where lovers finally meet, makes love one of its central themes. Even though it is demonstrated that love may be painful, it is also made clear that while for some characters love is a curse, for others it is the ultimate aim. 

Orsino portrays it as a desire to sate an appetite. It is an illness that Olivia battles with. Love damages everyone, even Viola. Love is shown metaphorically as something that fiercely trembles those it touches. Malvolio and Antonio, on the other hand, have difficulties achieving their goals. 

Antonio is unaware of how Sebastian's desire for him is restricted by societal conventions. Other characters, however, have succeeded in love and demonstrated that it is a wonderful emotion.

Madness:

Malvolio's character, who is also a subplot in the play, embodies the madness of love. Later, Sir Toby and Maria notice Malvolio is insane and play a joke on him. Fest displays some of the characteristics of lunacy in the play's last scene as well. It's interesting to observe from this insight that the characters' sanity and craziness are genuinely connected. Additionally, it resembles commotion.

Uncertain Gender Identity:

When Viola takes on the role of Cesario, a male character, she demonstrates this misunderstanding of gender identification. For instance, despite Cesario's femininity, Olivia loves him. 

Orsino, on the other hand, concurs that despite Cesario being a man, he was nevertheless attracted to him. He is relieved to learn that Cesario is Viola.

Deceit:

Another subject in the play is deception, and Viola succeeds in fooling Orsino and everyone else in the court by posing as a male. Malvolio lies to himself and falls in love with Olivia because he aspires to join a noble society. Olivia tells herself she will mourn for seven years, but when she meets Cesario, she breaks her promise.

Disguise:

Viola dresses as Cesario, a guy, to hide her true identity. Maria and Sir Toby's jokes are also a front for their intense animosity towards him. To make people laugh at Malvolio's love sickness, they ridicule him. Feste, on the other hand, develops into a learned man, Sir Topas. Additionally, Olivia and Orsino hide their unrequited love.