An interesting manifestation of photography is to take a picture of a scene, and then, by holding it up to the original scene, you can overlap it with that scene

Are you talking about multiple exposures? Multiple exposure is a shooting technique, though it is often chosen to set the mood, using two or more exposures at different focal lengths to show what is difficult to show in a single photo. The multiple exposure technique is generally used to take double or multi-image photographs. It can be said that the multiple exposure function is a product of the film camera era, in the traditional film SLR camera, multiple exposure is a very important function, is a unique photographic technique. The principle of the multiple exposure technique is to shoot several images on a single piece of film, so that a subject appears several times in the picture, and you can shoot the effect of creating something out of nothing by magic, which is exactly what makes it so unique and attractive, and that is why it attracts many people to use this technique.