Francesco LoCastro must have had a lot on his mind when he constructed the paintings that comprise his recently opened “Advent” show at the Art and Culture Center. Enormous, larger-than-life, unquantifiable themes percolate from the artist’s colorful and exhilarating work, which reinterprets geometric abstraction for the 21st century through inventive bursts of epoxy resin. There are sometimes subtle, sometimes vast differences between the paintings, but they all embody a clutter of soft-hued, three-dimensional shapes that suggest no less than the very creation of our world.