There can be no prosperity without peace.That will be one of the focal points Saturday during the second annual World Peace Day at the Isha Foundation on Harrison Ferry Mountain.A diverse schedule of events has been planned, including magician Collins Key, up-and-coming band Wild Child, and a roundtable discussion about achieving peace on personal and global levels.“People usually think of peace as not firing guns, but it’s more than that,” said Isha representative Alison Murry. “Peace is needed for good overall health, not just political peace, but the peace that has to do with human well-being. If you don’t have peace, and that’s personal peace, environmental peace, global peace, there is no way to achieve true prosperity.”Activities begin at 10 a.m. at the tranquil, 1,400-acre Isha retreat.