The second journey to Arendelle has more existential themes. How do we deal with life passing by, the need of control, our fears? Can we step out of our comfort zone even if we fought so hard to conquer it? The answer is yes. At least for Elsa and Anna. The first has to follow her destiny and her deep magical nature calling her to higher powers, the second will have to say goodbye to her cautious attitude to do something essential. Even if we still blame Elsa's song for the high pitch that makes it impossible for us to sing along, we will still sing under the shower. The cold still bothers us anyway.