There is no taboo in using gourd on WeChat avatar. Letterhead is a social tool with high frequency of use. Letterhead is a business card for communication and a symbol used, just like a name. A holographic image, with subconscious information, made into pictures and photographs, will attract things, different from things and corresponding experiences. With color, shape and image, the picture is flat, three-dimensional, static and dynamic, which will release energy.