The speaker has found a place to disappear: the thick, flowering branches of a rhododendron. From there, they invite someone to "find me" while also insisting they are hiding, which gives the opening a small tug of contradiction. Part of them wants to be left alone, and part of them may want to be noticed.
The reason is simple and honest. "Outside is much too loud / for me." The speaker feels overwhelmed by the world beyond the bush, and the blossoms become a kind of shelter. Calling them a "pink shroud" is striking, since a shroud suggests death or burial, yet the next line calls pink "the color of hope." So the hiding place is both a retreat and a comfort, a little sad but also gentle.
The mood is quiet and tender. The repeated name of the flower works like a soft refrain, and the short lines make the speaker's voice feel small and careful. In the end, they are still watching, not fully gone from the world.