Jannah in the context of "Houris"

Islam is an Abrahamic monotheistic religion based on the Quran and the teachings of Muhammad. Adherents of Islam are called Muslims, who are estimated to number 2 billion worldwide and are the world's second-largest religious population, after Christianity.

Muslims believe that there is a primordial faith that was revealed many times through earlier prophets and messengers, including Adam, Noah, Abraham, Moses, and Jesus, and they believe that Islam is the universal and complete version of this faith. Muslims consider the Quran to be the verbatim word of God and the unaltered, final revelation. Alongside the Quran, Muslims also believe in previous revelations, such as the Tawrat (the Torah), the Zabur (Psalms), and the Injil (Gospel). They believe that Muhammad is the main and final of God's prophets, through whom the religion was completed. The teachings and normative examples of Muhammad, called the Sunnah, documented in accounts called the hadith, provide a constitutional model for Muslims. Islam is based on the belief in the oneness and uniqueness of God (tawhid), and belief in an afterlife (akhirah) with the Last Judgment—wherein the righteous will be rewarded in paradise (jannah) and the unrighteous will be punished in hell (jahannam). The Five Pillars, considered obligatory acts of worship, are the Islamic oath and creed (shahada), daily prayers (salah), almsgiving (zakat), fasting (sawm) in the month of Ramadan, and a pilgrimage (hajj) to Mecca. Islamic law, sharia, touches on virtually every aspect of life, from banking and finance and welfare to men's and women's roles and the environment. The two main religious festivals are Eid al-Fitr and Eid al-Adha. The three holiest sites in Islam are Masjid al-Haram in Mecca, Prophet's Mosque in Medina, and al-Aqsa Mosque in Jerusalem.

al-Ākhirah (Arabic: الآخرة, derived from Akhir which means last, ultimate, end or close) is an Arabic term for "the Hereafter".

In Islamic eschatology, on Judgment Day, the natural or temporal world (dunya) will come to an end, the dead will be resurrected from their graves, and God will pronounce judgment on their deeds, consigning them for eternity to either the bliss of jannah (heaven) or the torment of jahannam (hell).

Iman (Arabic: إِيمَان, romanized: ʾīmān, lit. 'faith' or 'belief', also 'recognition') in Islamic theology denotes a believer's recognition of faith and deeds in the religious aspects of Islam. Its most simple definition is the belief in the six Pillars of faith, known as arkān al-īmān. Shiite theologians have proposed several theories regarding faith (or in its Arabic form, "Iman"). Some assert that faith consists of a single pillar: the belief held in the heart (the most inner and honest part of human being). Consequently, faith is defined as the affirmation of the heart, with verbal confession and actions playing no role in its actualization.

The term iman has been delineated in both the Quran and hadith. According to the Quran, iman must be accompanied by righteous deeds and the two together are necessary for entry into Paradise. According to the Quran, the seat of faith is the inner heart, the innermost part of human perception, while the seat of "Islam" is the intellect. In the hadith, iman in addition to Islam and ihsan form the three dimensions of the Islamic religion.

Islamic extremism is characterised by extremist beliefs, behaviors and ideologies adhered to by some Muslims within Islam. The term 'Islamic extremism' is contentious, encompassing a spectrum of definitions, ranging from academic interpretations of Islamic supremacy to the notion that all ideologies other than Islam have failed and are inferior.

Islamic extremism is different from Islamic fundamentalism or Islamism. Islamic fundamentalism refers to a movement among Muslims advocating a return to the fundamental principles of an Islamic state in Muslim-majority countries. Meanwhile, Islamism constitutes a form of political Islam. However, both Islamic fundamentalism and Islamism can also be classified as subsets of Islamic extremism. Acts of violence committed by Islamic terrorists and jihadists are often associated with these extremist beliefs.

Ghilman (singular Arabic: غُلاَم ghulām, plural غِلْمَان ghilmān) were slave-soldiers and/or mercenaries in armies throughout the Islamic world. Islamic states from the early 9th century to the early 19th century consistently deployed slaves as soldiers, a phenomenon that was very rare outside of the Islamic world.

The Quran mentions ghilman (غِلْمَان) as eternal Male youths who are one of the delights of Jannah or paradise/heaven of Islam, in verse 52:24 (Verse 56:17 is also thought to refer to ghilman).

Iblis (Arabic: إِبْلِيسْ, romanized: Iblīs), also known as Shaitan, is the leader of the devils (shayāṭīn) in Islam. According to the Quran, Iblis was thrown out of heaven after refusing to prostrate himself before Adam. In Sufi cosmology, Iblis embodies the cosmic veil supposedly separating the immanent aspect of God's love from the transcendent aspect of God's wrath. He is often compared to the Christian concept of Satan, since both figures were cast out of heaven according to their respective religious narratives. In his role as the master of cosmic illusion in Sufism, he functions in ways similar to the Buddhist concept of Mara.

Islamic theology (kalām) regards Iblis as an example of attributes and actions which God punishes with hell (Nār). Regarding the origin and nature of Iblis, there are two different viewpoints. According to one, Iblis is an angel, and according to the other, he is the father of all the jinn. Quranic exegesis (tafsīr) and the Stories of the Prophets (Qiṣaṣ al-anbiyāʾ) elaborate on Iblis's origin story in greater detail. In Islamic tradition, Iblis is identified with ash-Shayṭān ("the Devil"), often followed by the epithet ar-Rajīm (Arabic: ٱلرَّجِيم, lit. 'the Accursed'). Shayṭān is usually applied to Iblis in order to denote his role as the tempter, while Iblīs is his proper name.