Welcome another one back to the land of the living: The deCordova Sculpture Park and Museum reopens its indoor galleries Thursday with a pair of brand-new shows, both long delayed as COVID-19 threw exhibition schedules into disarray. Visitors have been able to enjoy the museum’s lush grounds for many months, with the Trustees of Reservations opening the rolling 30-acre campus to the public as the weather turned warm. But the museum itself, perched high above Flint’s Pond, had the air of an abandoned fortress, sealed tight and silent. Life returns, finally, with two shows that strike a bright, optimistic tone: “Visionary New England,” about the pervasiveness of utopian experimentation throughout the region, and “Transcendental Modernism,” which offers a broader take on the narrow tale of Modernism to include movements like Afro-futurism and crossover experiments between art and science. Advance tickets are required for indoor and outdoor visits. Reserve your spot via thetrustees.org/decordova.