Regarding the verse 3:27 of the Holy Quran: “You make the night into the day and You make the day into the night, and You extract the living from the dead and You extract the dead from the living, and You give sustenance to whomsoever You desire to without measure.”
Abu Abdullah (as) says in a lengthy hadith: “So the “living” is the believer whose clay is extracted from the clay of the kafir; and the “dead” who is extracted from the living, he is the disbeliever who comes out from the clay of the believer. So the “living” is the Momin, and the “dead” is the kafir, and these are the words of the Mighty and Majestic: “Is he who was dead then We raised him to life [6:122]”. So his death was the mixture of his clay along with the clay of the disbeliever, and his life was when Allah (swt) Mighty and Majestic separated between the two by His (swt) Word (Kalimat-Allah (swt)).
Like that Allah (swt) extracts the Believer during the birth from the darkness after his entry into it – to the light, and He (swt) extracts the disbeliever from the light towards the darkness after his entry into the light; and these are the Words of the Mighty and Majestic [36:70] That it may warn him who is alive, and (that) the Word may prove true against the unbelievers’.
[Al Kafi V2 – The Book Of Belief and Disbelief CH 1 H 7, Maani ul akhbar, 10/290]