The annual performance jubilee from Performance Space 122 has always been a boundary buster, but at this year's festival, borders are an explicit theme: question them, cross them, erase them. Among the dance artists taking that mission to heart are Jillian Pe�a, who uses mirrors to play with perspective in "Panopticon" (Saturday through Jan. 17); David Neumann, with a narrative-driven dive in personal turmoil called "I understand everything better" (Sunday through Jan. 15); the Norwegian artists Findlay//Sandsmark + Pettersena, presenting a meditation on dying (Tuesday through Jan. 17); and the Australian duo of Helen Herbertson and Ben Cobham with "Morphia Series," inspired by the Greek god of dreams, and tailored to an intimate audience of a dozen (Wednesday through Jan. 16). At various times and locations; a full schedule and details are at ps122.org/coil-2016.