Final answer:
The question requests the identification of a main point pertaining to body piercing from an outline, but without the provided points, it's not possible to determine what the main point is.
Step-by-step explanation:
The question appears to be seeking identification of the main point within a preparation outline for a body piercing topic. However, the listed points are not provided in the question, which makes it impossible to specify the main point accurately without the actual content. In general, when planning the main points and body paragraphs, each main point supports the thesis and is developed with relevant evidence and reasoning in subsequent paragraphs. The main point of an outline or essay typically guides the development of the body paragraphs. It is often stated clearly at the beginning of the section, reflecting the core argument or focus of that section.