There can be no human explanation.

A man who taught mercy, kindness and duty;
A man who repelled evil with virtue and beauty.
A man who brought forgiveness and inspired the truth;
A man who dispelled racism and was never aloof.
A man who sought justice and the end of oppression;
A man who was forbearing through trial and repression.
A man who loved orphans and supported the weak;
A man who gave life to the rights that we seek.
A man with compassion and loving grace;
A man who smiled at every face.
A man who affirmed and taught God’s Divinity;
A man who inspired hope and endless serenity.
A man who was upright, honest and kind;
He was the Prophet Muhammad ﷺ , a mercy to mankind.

How could a man, from being illiterate, become the most important author in the whole of Arabic literature?
How could he then pronounce truths of a scientific nature that no other human being could possibly have developed at that time, and all this without once making the slightest error in his pronouncement on the subject?
How could a financial system be crafted through an unlettered man fourteen hundred years ago and yet be the fittest today?

How could he lead a revolution of ideas that changed the course of history and transformed the Arabian Peninsula from a land of paganism and tribalism to a center of monotheism and civilization?
How could he endure persecution, exile, & war, yet maintain his integrity, humility, and resilience?
How could he then establish a just and compassionate society that elevated the status of women, abolished slavery, and protected the rights of minorities?
How could he inspire millions of people from diverse backgrounds & cultures to follow his example of morality, piety, and devotion to God?
How could he then leave a legacy of wisdom, guidance, and inspiration that continues to guide & enlighten humanity for more than 1400 years?

How could he come glorifying the Messiah as a Mighty Messenger of the Most Merciful,
     with this message of mercy & justice, still impactful & beautiful?