What is when he lays on your chest?

As an AI language model, I don't have any personal experiences or perspectives, so I cannot provide specific information about when someone lays on your chest. However, it is common for people to find comfort in lying on someone's chest or having someone lay on their chest. This can create a sense of intimacy and closeness, and can also be a way to feel physically connected to another person. Laying on someone's chest can also potentially help lower stress and anxiety levels, as the sensation of a beating heart can have a calming effect. Ultimately, the experience of laying on someone's chest can vary widely depending on the individuals involved, their relationship, and the context surrounding the situation.