The Arabic word salaam (سلام) ("secured, pacified, submitted") has the same root as the word Islam. One Islamic interpretation is that individual personal peace is attained by utterly submitting to Allah. The greeting "As-Salaamu alaykum", favoured by Muslims, has the literal meaning "Peace be upon you".
The ideal society, according to the Qur’an is Dar as-Salam, literally, "the house of peace" of which it intones: And Allah invites to the 'abode of peace' and guides whom He pleases into the right path.
According to Islam there will be an era in which justice, plenty, abundance, well-being, security, peace, and brotherhood will prevail among humanity, and one in which people will experience love, self-sacrifice, tolerance, compassion, mercy, and loyalty. Muhammad says that this blessed period will be experienced through the mediation of the Mahdi, who will come in the end times to save the world from chaos, injustice, and moral collapse. He will eradicate godless ideologies and bring an end to the prevailing injustice. Moreover, he will make religion like it was in the days of Muhammad, cause the Qur'an's moral teachings to prevail among humanity, and establish peace and well-being throughout the world.