Islam is comprised of three essential beliefs: The belief in God, obeying his moral laws, and believing in the after-life. Submission to God is directly followed by obeying the moral standards of everyday life. The Qur'an makes morality reign supreme and ensures that the affairs of life, instead of dominated by selfish desires, be regulated by norms of morality. These laws are the standard by which God determines the life of the believers, and the disbelievers on the Day of Judgement.
The belief in life after death not only guarantees success in the Hereafter but also makes this world full of peace and happiness by making individuals responsible and dutiful in their activities. The Qur'an lays down a moral system which is the standard by which conduct a particular mode of conduct is judged and classified as good or bad. "It is not righteous that you turn your faces East or West; but it is righteous to believe in God and the Last Day and the Angels, and the Book, and the messengers; to spend the rest of your substance, out of love for Him, for you kin, for orphans for the needy, for the steadfast in prayers, and practice regular charity; to fulfill the contracts which you made; to be firm and patient in pain or suffering and adversity and throughout all periods of panic. Such are the people of truth, the God-conscious." (2:177)
To elaborate further, our faith should be true and sincere, we must be prepared to show it in deeds of charity to our fellow-men, we must be good citizens, supporting social organizations, and our own individual soul must be firm and unshaken in al circumstances. Along with these standards, there is also the five pillars of Islam that is essential to ensure a rewarding after life. These pillars include: The belief that Allah is the one and only God, and Mohammad is his prophet; Salat five times a day; Zakat; Pilgrimage to Meccah; Observe fasting ritual during the month of Ramadan. These standards provides a sanction to morality in the love and fear of God, which will impel man to obey the moral law even without external pressures. Through belief in God and the Day of Judgement it furnishes a force which enables a person to adapt the moral conduct with sincerity and devotion straight form the heart and the soul.
The Qur'an explains the Day of Judgement as the day when the whole universe will be destroyed and then again the dead will be resurrected to stand before God. That day will be the beginning of the life that will never end, and on that Day every person will be rewarded and punished by God according to his or her good or evil deed. "So set your face towards the straight path before the day arrives from God which is irreversible. Men will be segregated on that day so that he disbelievers will bear the consequence on his unbelief; and he who does the right will straighten out the way for himself, so that God may reward those who believed and did what was good, by His grace."...