Wallpapering a ceiling with textured wallpaper requires attention to detail and a precise approach. Use a ladder and safety glasses, and prepare the surface by cleaning and priming it. Apply a thin layer of paste to the wallpaper and let it soak for a few minutes. Position the wallpaper on the ceiling, carefully aligning the edges and smoothing out any air bubbles using a wallpaper smoother. When dealing with textured wallpaper, be gentle to avoid damaging the pattern. Use a damp cloth to wipe away any excess paste, ensuring a clean and professional finish.