In the eerie video for Grizzly Bear’s Shields single “Yet Again,” a young ice skater finds herself on a surreal journey after falling through rink ice and emerging in a lake. Carnie folk, forest cowboys, and happy teens populate the mundane-but-foreign world that director Emily Kai Bock builds around her stunned subject, while the graceful chamber-folk does figure eights throughout. But is this girl teleporting? Tripping? In an ennui-triggered fugue state? In the end, as the Creators Project co-produced “Yet Again” careens into an OK Computer-styled freakout, it’s all too much for her to, um, bear.