ALLAH
Everything that exists, except Allah, the Creator, is created by Him. Allah has full power over every bit of His creation. Allah is not created; He existed always, having His attributes; He will never perish, nor will His attributes diminish. Among His attributes is that He has knowledge of all His creation, that He sees the seeable and that He hears the hearable, and His knowing, seeing and hearing are in no way similar to ours. Allah speaks and His Speech is not made up of language or sound, nor does it resemble the speech of man in any way. He does not need any of His creation for His existence and He does not resemble any of His creation in any way. This means that Allah is not a man or a woman; He is not "a Father" or "a Mother". He does not have a wife, a mother, a father, a son, or a daughter; He has no equal or partner. Allah does not divide into parts; no creation, including man, has "a part of Allah" in him, nor can any creation become like Allah. He is the only God.
Allah existed eternally before He created any place, such as Paradise (Heaven), the skies, earth, or any planets. Hence, we know He is now as He was before He created all these places; He does not need any place to exist in. Allah has always known about every bit of His creation; there is no thing in His creation which escapes or defeats Him. No thing goes against the will of Allah. Both good and evil occur by His Will. However, Allah orders humans to do only the good; humans make the choice to obey or disobey Allah. Our ability to do good or evil is given to us by Allah, the Exalted.
HUMANITY
Men and women are one of the creations of Allah. They are distinct from plants, animals, jinn, and angels. They were created after angels and jinn; the first man was created from clay. Allah puts a soul into man but in no way is man's soul Allah, or "a part of Allah". The first man was Adam and all human beings come from his family. Adam had no mother or father; he was created and given life by Allah. Allah created a wife for Adam who bore his children. Allah created the human beings to order them to believe, profess the truth about Allah and His messengers, worship Allah only, and follow His orders during life on earth. Some of mankind has and does worship Allah correctly, obeys His orders, and will be rewarded beyond imagination. Some of mankind has not and will not worship Allah correctly and will be punished by Allah with severity in Hellfire.
JINN
Jinn are a distinct creation of Allah, who are invisible to humans. Allah created them from the pure flame of fire. They are male and female and have offspring. They exist here on earth and out of it. Like humans, some jinn worship Allah, but some do not. The ones who do not are known as the devils, whose head is Satan.
ANGELS
Angels are another distinct creation of Allah. They are not male or female and have no children. Allah created them from light. They never sin, obeying Allah in every matter. Humans have angels near them that record all they do. Some angels have appeared to men in the form of men but they never take a woman's shape. Some angels protect people from jinn by Allah's will. The angel who brought revelations to the prophets is Gabriel.
PROPHETS
Prophets are the greatest men that ever lived. Prophets received Revelation from Allah and conveyed it to the people. The prophets received the Revelations and conveyed them exactly in the language Allah ordered. The language of the scriptures is created, but Allah's speech is not. A messenger is a prophet who comes with abrogating some of the laws brought by the previous messenger or receives a new set of laws. Prophets were intelligent, trustworthy, truthful, did not commit major sins and never left their Religion. Many prophets have lived in the past. Muhammad, may Allah's peace and blessings be upon him, who lived some 1400 years ago, was the last and greatest prophet.
Other prophets before him include: Adam, Noah, Abraham, Isaac, Ishmael, Jacob, Joseph (son of Jacob), David, Solomon, Moses, and Jesus, may Allah's peace and blessings be upon all of them.
The true scriptures were Revelations received by prophets. Moses and Jesus both received scriptures, but what are now called the Torah and the Bible have been tampered with by man and are not the true Revelations received by the great messengers Moses and Jesus. The only scripture which is unchanged and will never be changed is the Qur'an, which is the scripture Allah gave Muhammad, His last prophet, in clear and eloquent Arabic. Allah has promised to protect the Qur'an from any changes by man, and it has remained unchanged since it was received some 1400 years ago. Unlike the prophets before him who were sent to a particular people, Muhammad was sent to all people who lived at his time and all people who live after him until the Day of Judgment when the earth will be destroyed.
THE DAY OF JUDGMENT
This earth, planets and stars were all created by Allah at a point in time. They did not always exist and they will perish by Allah's will. On a day which only Allah knows (not even the angels or prophets know it), Allah will make everything on earth and in the skies die (including angels, Satan, and all devils) and then He will resurrect them all and judge humans and jinns on what they did during their lives. Because humans and jinn made the choice to be believers or non-believers, pious or sinners, they will be rewarded or punished, by Allah's will, for what they believed, said, and did.
PARADISE (HEAVEN)
Those of mankind and jinn who believe correctly in Allah, and believe in the Messenger sent to them and profess their belief (i.e., becoming followers of the true Religion) and die with that status will dwell forever in Paradise, which Allah has created for them. The life in Paradise is better than what any human living on earth can imagine. Those in Paradise will experience it in body and soul, but the body will be a new body with no defects. Paradise is not allegorical. It is very real and actual. There will be wonderful riches, foods, joy, and peace. People will be married and have interaction with one another. Those in Paradise will be in ranks according to their piety. Those who are rewarded with Paradise will never be sent out of it.
HELL
Hell, another creation of Allah, is the everlasting dwelling place for those of humans and jinn who rejected the revelations of the prophets. Hence, they disbelieved in Allah and His messengers. Hell is also a particular place and is not experienced here on earth. Its torture will not cease. The suffering will also be in body and soul. Some humans who were followers of the true Religion will suffer in Hell for some time, because they had sinned and did not repent of their sins during their lifetime. Being believers of the true Religion, they will get out of Hell after a time which Allah wills. Then they will enter Paradise and dwell there forever and receive no further punishment. Some believers of the true Religion who die as sinners will be forgiven by Allah on the Day of Judgment and will not go to Hell before entering Paradise.
LIFE AND DEATH
This life of a human or jinn always ends with death and there is no exception. Humans do not choose their race, sex, parents, or birthplace and will not be held accountable for those aspects of their life on the Day of Judgment. No human is doomed to Hell because he was born as a certain sex or race. Allah the Merciful, has promised any human or jinn who dies as a follower of the true Religion will receive Paradise forever. Those people who truly never heard about the correct belief in Allah and any of the messengers during their entire lifetime and died in that state will not go to Hellfire. But those sane and pubescent people who have heard of the correct belief in Allah and His messenger and die not embracing this true Religion will dwell in Hell forever.
The correct belief in Allah has never changed and every prophet and messenger has said the same concerning belief in Allah: No one is God but Allah and mankind is to believe in Him and worship Him only. The prophet for the people on earth at present is Muhammad, may Allah's blessings and peace be upon him, and the laws for the present population are the laws that prophet Muhammad was given by Allah for mankind. There will be no new laws given, for there will be no new messenger.
Usually, the person is given one life in this world, so a person is wise to live this life correctly. No matter how appealing it is to some people, they will not "reincarnate" after they die. This and other false beliefs about mankind and Allah are whispered into human's minds by Satan and the devils, and some men are fooled into believing them.