Select mobile wallpaper wisely, never put wallpapers of dried leaves, sad quotes, sad faces, abstract designs, or anything negative. A lot of people have wallpapers of nature and mountains, avoid pictures of mountains as they resemble heavy weights and blockages, avoid sad faces or quotes as they symbollically attract negativity. Avoid abstract images as they distract the mind. Instead use peony flowers (if you want to get engaged) , sunflowers for positivity or any flowers. You can also install images of your favorite god or goddess, but make sure , no icons cover their faces. Use prosperity or other positivity quotes.