Here are some of my observations...
There is a strong theme of identity. Rapunzel's is most obvious, of course, as she discovers who she really is in the end. But there is also an awakening in Eugene, as he learns the real treasure worth living and dying for: love. From the start, his orphan heart longed for a different destiny. Though he tries to fill the ache with money and adventure, his heart knows he was meant for something bigger and better than selfish gain...Rapunzel's innocence, purity, joy, and sacrificial love reveal this to him. Like Eugene, something inside of us knows that we weren't meant to live in sickness, pain, poverty, emptiness, and loneliness. Only the pure, joyful, redemptive love of Jesus can rescue us from that reality and call us up to our true destiny! As we walk in our destiny, our very lives will call those around us to rise up into theirs! "I have a dream!" :)
I love Rapunzel's heart. She is so life-giving that everyone she touches has an experience of light and joy! How can someone spend their entire life locked up and lied to and put down, yet still have love and purity and joy? For Rapunzel it was the power of the sun living inside her; For us it is the power of the Son living inside us! With Jesus, we live lives of undimmable joy...healing freely, dreaming passionately, loving unselfishly, and illuminating every life around us with the Son's light! Rapunzel heals through her singing and her tears; We heal through Jesus' joy and compassion! Powerful!
How insidious is our enemy, who, like Mother Gothel, locks us up in bondage, professing "love" but only desiring to keep us from knowing who we really are and Who we really belong to. The enemy lies to us incessently, manipulating us with half-truths, condemnation, fear, and self-doubt. Then he constructs circumstances that would appear to us to support those lies as truth. As Mother Gothel did to Rapunzel, planting seeds of doubt about Eugene's motives, and then making it seem exactly as she had said. Of course, just at the moment we agree in our hearts with what the enemy is saying, he will show up to "save" us from further pain with those old familiar lies, mindsets, and habits. Agreeing with him will always land us in bondage. 
In the end, the only way Rapunzel could see through the cloud of lies she had been fed all her life was to realize who she really was. Just as she was the lost princess, so are we children of the King...misplaced, purposeless, abused, and hidden for too long! True freedom comes from knowing our identity in Christ! Once we wake up to who we are, there comes a spirit of victory that throws off the life bound up in the devil's lies, and steps out into the abundant life of position, purpose, and passion we were made for!I love the analogy of true love and false love, too. False love takes everything for self and only gives enough to keep the other giving. Real love always does what is best for the other, without thought of cost to self or reciprocation. Eugene wasn't willing to let Rapunzel live a life of slavery, so he gave up his own life to save her from it. Sounds an aweful lot like what my Jesus did for me thousands of years ago!
See? It is a Kingdom story. It is my story. It is your story! Like Rapunzel finally seeing the sun in all her paintings, look back over your life and see the imprint of the Son...you are the child of the King! There is more joy, power, freedom, and love waiting for you than you can ever imagine! Know who you are!
Oh, and one more thing...Rapunzel knowing she was a daughter wasn't enough...she always knew she was a daughter. The freedom came from knowing WHOSE daughter she was! Know your King, and then you will know who you are!
Be blessed!
Sarah