Struck by its loss of meaning, “bless you” as generic as a common reflex and void of soul. It appears that the phrase originates from superstitions that on a rational level, we generally know to be inaccurate. Nonetheless, the need to say it is nearly universal out of habit or common courtesy.
Here lanterns substitute for tissue boxes, repurposed to dispense disposable kepahs. The overall reference is to the institution of organized religion and its commoditization, loss of spiritual meaning, and the convenience and disposability of contemporary society. Symbolic objects have been divested of their original purpose and meaning to become something rather empty.