Rama sent Sita the ring from his messenger Hanuman which is the first glimpse of hope she's seen since her capture. Her not being able to cross the sea ('Blue Nile') to go back to her husband feels like drowning.
Being 'trapped' in Lanka should have been fine to any other woman, and might even have been fine to her before she met Rama. Ravana would give her anything she ever asked for, except the one thing she wanted most— freedom.
The very fate she is saddened by is the dream that any other woman would desire. She should be happy that she doesn't have to spend the rest of her exile in a forest in an uncomfortable house with little food. She does not have to suffer with her husband in the forest any longer, and that makes her... want to cry. Should she be allowed to cry instead of being grateful that Ravana does not wish to hurt her?
Sita is not weak or stupid. She could plan an escape on her own and succeed if she wanted to. She could have gone with Hanuman when she had the chance. She stays, not because she wants to, but to allow her husband his moment of glory as he fulfills his duty on Earth and avenges her in war, thus restoring dharma. It is what needs to happen. That doesn't stop her from fantasizing though. She imagines herself impulsively slaying the asuras herself and swimming back to Rama's embrace without caring for her life. In her dreams, she doesn't have to stay strong.
Rama constantly has to choose between being the king that his people deserve and being the man that his family deserves. That is the paradox. Sita, during her final moments in Ayodhya, relieves him of that choice by going into vanavasa so that he can just be the king that his people need and sacrificing the husband she deserves.
Sita knows Rama is going to avenge her and destroy Ravana. She knows it's his destiny to restore dharma on Earth. She knows this because she is Thayar's incarnation, she was there when her destiny was written. But in her human form, while she's being held captive, the doubt plagues her- what if she's being delusional? What if her visions are wrong and nobody is coming for her? It's driving her mad.
This is so Yaaro Ivar Yaaro coded. Rama knew they were meant to be the moment he saw her. Rama claimed her in every lifetime. He loved her in every lifetime. And only Sita knew that.
Ramayana is written in such a way that if Rama had missed a single step if even one thing had gone differently, they would have lost the war. If Hanuman hadn't returned with the Sanjeevini mountain in time if Jatayu had died before he got the chance to tell Rama what happened, or if he hadn't seen Ravana kidnap Sita at all, if Jambavan hadn't reminded Hanuman of his powers and they hadn't crossed the ocean... there were so many variables, and only one constant. Love. Sita pinned all her hopes on that one constant, knowing fully well that she could lose everything including her own life if that failed.
"I keep recalling things we never did" = things they did in their past life.
This is also Yaaro Ivar Yaaro coded. In the song, Rama recalled his past life with her when he saw her. It would be rather poetically fitting if Sita recalled it when she was away from him. Things they never did in this lifetime, because circumstances had it that they spent more time away from each other than together. But there wasn't a moment in their time on Earth that they didn't spend loving each other.
She wants Rama to take her back to Ayodhya, but she also knows that when she gets there, she will not get the welcome she deserves from the people. She has stayed faithful to Rama, she hasn't touched Ravana or any other man even once, and Rama would believe her but who else would? Even after walking through fire to prove her innocence, the people of Ayodhya would declare her guilty.
This line is so Nee Uraippai Hanumaane coded, like when Rama says "nee uraithadhinaale vandha vinai thaan idhu".
The first time she expresses a desire, to accompany her husband to the forest, Rama warns her against it but ends up agreeing out of love— that caused him so much guilt and concern. The next time, the golden deer, that's what got her into this mess in the first place. The last time, in Lanka, where she expresses her desire for freedom, she is denied it. She is offered everything— except the one thing she truly desires.
Rama's blind need to fulfill every desire she expresses has only caused them chaos and suffering. Ravana's pride in being able to give her everything she could desire, except the one that she has expressed, has caused her nothing but frustration. Perhaps if she had kept her longings locked away from everyone, if she kept her desires smaller, they could have been happy.
Sita has no impure thoughts, Kamban describes her as not just a mere woman, but the embodiment of great lineage, boundless patience, and chastity— all qualities dancing with joy in one person.
But if we look at Amish Tripathi's version of Sita's swayamvara— she did have faith in Rama, that's why she chose for the swayamvara to be a test rather than just garlanding the person she wanted. However, her love for Rama was so deep that she almost broke the rules by giving him the bow to practice with beforehand because she could not bear the thought of not marrying him.
Despite all of that, in the end, Rama won Sita's hand fairly, so that's what counts.
This whole paragraph is so Yaaro Ivar Yaaro coded again. Their fantasies of having what they had in every lifetime before add to the pressure and anxiety, consuming all their thoughts, but that's what makes the final result worth it. They're already married in their heart even before the swayamvara has started. It was never going to be anyone else, for either of them.
Lanka is quite literally ablaze from Hanuman's fire, and that's how she knows Rama is coming for her. The fire wasn't just a symbol of rebellion, but a message to Sita that Rama who is not by nature a violent person, would destroy the entire kingdom if it was what he needed to do to protect her.
Without ever touching his skin / How can I be guilty as sin?
What if I roll the stone away? / They're gonna crucify me anyway
Sita could walk through fire a thousand times and emerge unscathed to prove her chastity, but it wouldn't change the rumors circulating among the people. It wouldn't change the way anyone viewed her, and it wouldn't stop them from villainising her. Because their doubts of her chastity were never about justice, they were about silencing a woman's voice. And society will find a way to do that even in the face of the most undeniable evidence.
Sita is the Cassandra of Ramayana. At a time when women were meant to be seen and not heard, Sita made sure her voice was heard. She was the one who started the war in the first place, not Rama. Rama just wanted to get her back, which is why he sent Hanuman. She made it clear that he had to fight for her by refusing to come back with Hanuman. She was a strategist, not a helpless damsel in distress. She had a husband who gave her everything she asked for, and that challenged their patriarchal mentality because a mere woman should not have that much power over the king of Ayodhya. They believed her once she was swallowed by the earth because that's when she was no longer a threat. They could rewrite her narrative as an obedient (even though she has canonically never once obeyed her husband), helpless damsel in distress. After all, History is told from the perspective of men that people choose to believe.
The most beautiful thing in the Ramayana is that Perumal and Thayar in their human forms are not heroes because of their divinity. They are heroes because of their love. Rama wouldn't have had a reason to attack Lanka if he didn't love Sita. Sita wouldn't have had a reason not to marry Ravana when he kidnapped her if she didn't love Rama.
Love is why the entire Ramayana happened, therefore in the absence of Perumal and Thayar's cosmic powers, their love for each other is actually what's holy.
If long-suffering propriety / Is what they want from me / They don't know how you've haunted me / So stunningly / I choose you and me / ... Religiously
Sita chose Rama even when Ravana offered her everything she could ever want.
She chose him even when he went to the forest, despite having to leave behind the luxuries of the palace that a future queen was entitled to.
She chose him even when choosing to leave Ayodhya forever, despite having sufficiently proved her innocence simply to protect her husband from public scrutiny.
Rama and Sita chose each other perpetually. Rebelliously. Unceremoniously. Religiously.
What if he's written 'mine' on my upper thigh / Only in my mind? / One slip and falling back into the hedge maze / Oh what a way to die
I keep recalling things we never did / Messy top lip kiss / How I long for our trysts / Without ever touching his skin / How can I be guilty as sin?
He sent me 'Downtown Lights' / I hadn't heard it in a while / Am I allowed to cry?
-A reinterpretation of the lyrics of Guilty As Sin? by Taylor Swift to highlight Sita's love for Rama in the Ramayana