What is the purpose of a "triptych" in art?

A triptych is specifically defined as a three-paneled piece of artwork, which is often used for altarpieces in religious contexts. This format allows for a narrative to unfold across the three panels, enabling artists to depict a sequence of events or themes that can be visually and thematically interconnected. Traditionally, the central panel is larger and may represent the main focus of the artwork, while the two side panels provide additional context or support the central imagery. This arrangement serves both aesthetic and spiritual functions, enhancing the viewing experience and deepening the viewer’s engagement with religious stories or themes.

In contrast, the other choices do not accurately define a triptych: a two-dimensional decorative panel refers to a singular artwork that does not possess the narrative or structural depth of a triptych; a single-paneled artwork is inherently distinct from the triptych format, lacking its multi-panel composition; and kinetic art refers to artworks that incorporate movement, which is unrelated to the traditional concept of a triptych.