Michael Angelakos nearly lost his life making “Gossamer,” a project that was almost aborted in light of the Passion Pit mastermind’s struggle with bipolar disorder and the ensuing drinking, frustration and erratic behavior – including a suicide attempt. All that darkness is spelled out in this brilliant sophomore release, but it’s hard to read without getting distracted. During the first spin you’ll likely become lost in a carnival of bouncy, anthemic synth, high-pitched, sliced-up vocal samples and joyful sonic headrushes. It’s even brighter than their 2009 debut “Manners,” which was pretty blinding itself. But it isn’t all rapid-fire pop spectacle – the sun-soaked soul ballad “Constant Conversations” enlists the Swedish a cappella trio Erato, and violins are lifted alongside fluid keys and buzzing snaps on closer “Where We Belong,” where Angelakos sings “and then I’m lifted up out of the crimson tub/ The bath begins to drain/ And from the floor he prays away all my pain.” It’s all pretty heavy stuff, carried skyward by an army of celebratory sounds you can dance to.