What is the principle of the big change in magic?

1, first of all, the audience can see the stage has only a root, there is nothing, as shown in the picture below.

2. Then, the magician will ask his assistant to pull a piece of cloth, but you can still see nothing at the bottom of the stage, as shown in the picture below.

3. The secret is that there is still a large group of people under the stage, and the audience can't see the bottom of the stage, as shown in the picture below.

4, just below the base of the root there is a lift, when pulling the cloth, there are people standing inside the lift, as shown in the picture below.

5. It is from the root base here that the person rises up, as shown in the picture below.

6, so it is completed, the assistant to remove the cloth, you will see the big change, as shown below.