At turbulent times which have persisted in man's life on this planet...
At turbulent times which have persisted in man's life on this planet, peoples can always preserve their unity and sanity by adhering to the appointed Imam. Pharaoh-like rulers are destined to the abyss of history, as Saddam's end clearly shows. Not only the Mahdi is supported by Allah's angels, but also he has inherited the wisdom and experiences of all the righteous envoys that came before him.
Just before the End Times, He will fulfill the Creator's promise in making the meek the ones who will inherit the Earth. I. Introduction Humanity has long yarned for a Saviour. Both scientific and religious texts indicate that cycles of human races lived on the plant Earth, and then went distinct. Archaeological studies takes man's existence to 500,000 years in history, whereas the religious texts puts Adam's fall on Earth some 12,000 years back, indicating to prior existence of humans here.
The Creator has given man a relatively free will to conduct his life, on different parcels of land, in various societies. Throughout human history, God sent very many envoys to guide man towards what is good for him in this life (and the Hereafter). By bringing laws to regulate man's life, the Prophets warned against breaking these laws. Religious legislations have always been harmonious with the natural (existential) laws, leading to abundance, happiness, and peace in man's life.
Many of the humanity's problems can be attributed to the dysfunction of man-made laws. Just examine the isms which were recently made so glamorous and then sharply declined. In the past century, Communism is a good case for academic interests. When a human society moves in a direction opposite to the natural course, it inevitably hits the rock of history. For being based on materialism, Capitalism will soon meet its prescribed destiny.
Balancing both the spiritual and material needs of man, Islam is expected to dominate the global arena. The Quran provides a complete code of life - it is a perfect constitution. After testing all other man-made laws, the humanity will eventually profess its need for Islam's equalitarian legislations. Central to these is the concept of Mahdism - a divine figure who will justly implement the codes of laws and help mankind to discover the Earth's abundant treasures.
Reviewing the missions of all Allah's envoys, one will find the implementation of justice is central for all of them.