Rationale Behind Shirk
The different to believe in something is of Haq and Zann (speculation) makes one valid and other invalid. To believe in Allah and His religion has been proven through prophets and other verifiable signs. The prophets first made people believed that they are from Allah. The message they give is in conformity with intellect that there should be one God and there should be a hereafter to complete the meaning of life here with justice. The triumph of the prophet followed by his claim that he would be truimphant and his opponents would lick the dust and be perished are proven facts of history. The predictions they made come true. The living evidences of God’s promises and covenant (that if they accept faith and be righteous they will prosper and be dominant on their opponents and if not they will be humiliated and the Jews will stay subordinate to the Christians) are witnessed in the cases of Bani Israel and Bani Ishamael. Their national life has been a living evidence to the fact. So the God of Islam is the true God and His religion is the true religion. on the other hand, there is speculation and assumption. This is called Zann. To believe in Zann is absure and makes one answerable for this folly.