Nostalgic, maybe. Serious, not so much.
What is true? A spurt of laughter, an accidental burst of a guffaw, that makes others smile in wonder at what was so funny. The uncontrollable giggle, not from hebephrenia, but from that thing that reaches deep down, all the way to your toes, and just makes your "happy" come out and be loud.
What is true? A hug that wraps you up in consolation and comfort. Those arms that hold you close and banishes your fear. With no words, you know you are loved and protected.