Zunubai suna makanta basirar zuciya, suna kashe haskenta, kuma suna toshe duk hanyoyin zuwa ga shiriya ta gaskiya. Lokacin da Imam Malik, Allah ya yarda da shi, ya ga alamun ilimi mai ban mamaki a cikin Imam Shafi'i, ya ce masa: "Na ga cewa Allah ~ ya sanya haske a kanka, don haka kada ka kashe shi da duhun rashin biyayya gare Shi (ta hanyar aikata laifi)." Idan mutum ya ci gaba da aikata laifuffuka, hasken farko da Allah ~ ya sanya a zuciyarsa yana ci gaba da raguwa, yayin da duhun zunubai ke mamayewa, har sai ya rufe dukkan zuciya, ya jefa ta cikin duniyar duhu; duniyar halakar kai. Wannan duhu yana yaduwa a cikin gaɓoɓi har ya kai ga fuska, yana mai da ita siffa mai baƙin ciki da takaici. Wannan tasiri kuma yana ci gaba zuwa Rayuwar Bayan Mutuwa, yana ƙara duhun kabari. Annabi ﷺ ya ce: "Waɗannan kaburburan cike suke da duhu, a kan mutanensu, amma Allah yana haskaka su, saboda addu'ata a kansu." A Ranar Tashin Alkiyama, za a tara dukkan mutane, fuskokinsu a ɗaga sama kuma kowa zai gan su a fili. Fuskokin masu zunubi za su yi baki, kamar gawayi. Wannan azaba ce wadda nauyinta bai daidaita da dukkan sha'awoyin duniya ba; don haka dole ne mutum ya yi haƙuri a wannan duniya.

Sins blind the heart ' s insight, blot out its light, and block all means towards its right guidance. When Imam Malik, may Allah be pleased with him, saw signs of remarkable knowledge in Imam Shafi'i, he told him: "I see that Allah ~ has cast a light upon you, so do not extinguish it with the darkness of disobedience to Him (by committing a misdeed)." When a person continues to do misdeeds, the original light, which Allah ~ had cast in his/her heart, continues to decrease, as the darkness of sins takes over, until it overwhelms the whole heart, and casts it in the world of darkness; the world of self-destruction. This darkness spreads in the limbs until it reaches the face, turning it into a gloomy disillusioned figure. This effect is also carried over to the Life After Death, and adds to the darkness of the grave. The Prophet ~ said: "These graves are filled with darkness, over its people, but Allah sheds light on them, with my prayer upon them." On the Day of Resurrection, all people would be gathered, with their faces raised high and clearly seen by everyone. The faces of sinners will be blackened, like charcoal. It is a punishment which is not equal in weight to all the worldly desires; so one must be patient in this world.