By once again rallying his supporters both in defiance of the government and in the name of mourning those who have been killed, Mousavi is rekindling the spirit on the 1979 revolution. Through 1978, demonstrations following a 40-day mourning cycle — each time mourners gathered, more would be killed — became the engine of the revolution. Mousavi is not going to be constrained by the 40-day tradition, but he is tapping into mourning as perhaps the most potent and unifying sentiment among Shiites..At this point, it appears that the rubicon has been crossed — Iran is in a revolutionary situation. For many analysts, this is something they appear to have a hard time grasping. After all, Mousavi, Rafsanjani, and Katami are mainstays of the regime. Their intentions have merely been to usher in reform or simply a reapportioning of power — not stir up another revolution.