Well, when it comes to meta-aspects, what I love most is when a narrative successfully encapsulates social discourse into a coherent social critique that's relevant to real-world issues.
Internally, I enjoy writing heartwarming scenes like the sweet interactions between a mother and her little daughter, moments of sharing with the children at an orphanage, and darker elements like a hero's sacrifice, a husband and wife's final farewell message due to tragedy, and a conscience that doesn't turn away from truth. These are the scenes that make me cry when I write them.