To see the four caliphs to become martyrs, their way of wisdom and the realization of the world and the Hereafter, to realize the power and strength of Islamic society; Imam Hasan and Hussein (ra) to see no and bestowal, to see their compliments and bestows to see the goods and blessings, to look after the poor, prosperity and happiness signifies. For a broader definition, see the articles Ebubekir, Ömer, Osman, Ali, Hasan and Hüseyin (r. Anhüm).