The annual Día de los Muertos gathering at Hollywood Forever is always one of this city’s most visually astonishing spectacles, as thousands of people gather in the graveyard to marvel at lavishly ornate altars that honor the spirits of the dead. It’s more of a celebration than a sad occasion, even as the setting reminds us that we are all just temporarily wandering through this life. This year’s theme, “The Tree of Life,” emphasizes that we are all connected to the same planet. It’s worth arriving early to beat the crowds and admire the folkloric dancers and altars in all their colorful finery, but the festival culminates after dark with Buyepongo’s breezily tropical dance music and a set from headliner Julieta Venegas, the onetime member of Tijuana No! who now prefers a more soothing pop style.