The speaker treats an ordinary bathroom as a hiding place. It is small and private, yet its little window lets him look out at the world and, just as much, look into himself. Inside, he is free to rehearse speeches, sing, daydream about love, and wash away dirt and perhaps guilt. Even the spiders and geckos feel like fellow residents of this snug, damp space.
Outside, nature carries on calmly: a Koel sings, a crow cleans its beak, a squirrel hops up a tree. The wider human world is different. The poem imagines it as a predator, sharpening its claws and gnashing its teeth, waiting for him. That image reveals his anxiety, and he admits he is "bracing to be eaten alive."
The mood is wry, tender, and a little fearful. The bathroom becomes a buffer between dull everyday routine and harsher realities, and a place where he works out who he is and who he wants to be.