Allah Ta’ala has sent down Prophets for the guidance of the creation. Each Prophet has been granted miracles based on the requirements of their times. Whatever area of knowledge/field that the Ummah excelled in, the Prophets would express such a miracle in that very area that everybody would be astonished.
The whole humankind until the Qiyamah is the Ummah of the Holy Prophet (Sallallahu alaihi wa sallam). As science and technology were going to reach their peak in this Ummah, to answer all objections and to make clear the veracity of Islam, Allah Ta’ala granted the Holy Prophet (Sallallahu alaihi wa sallam) innumerable miracles.
Today science is at such a peak that human beings are trapping and utilizing the rays of the sun, are traveling in space and have even landed on the moon. In spite of all this, the astronomers, space/rocket scientists, etc. are dazed before the miracle of the heavenly journey (Meraj) of the Holy Prophet (Sallallahu alaihi wa sallam).
The progress of science is unraveling the truths of Islam. The objection of the people that how is it possible that such a long journey could be completed in a small part of a night is not correct, because “light” created by human beings is so fast that it travels 300,000 kilometers in 1 second. When the “light” created by the creation is so powerful, then who can imagine the swiftness and ascent of the One (Sallallahu alaihi wa sallam) who is absolute radiance?
Allah Ta’ala has sent approximately 124,000 Prophets in this world. Every Prophet was given miracles as per the age and era in which they came, but the Holy Prophet (Sallallahu alaihi wa sallam) is Himself a miracle. Other Prophets were also granted their Meraj, but the Meraj of the stature and greatness of the Holy Prophet (Sallallahu alaihi wa sallam) was not granted to anybody else.
In a part of a night, the Holy Prophet (Sallallahu alaihi wa sallam), in His blessed physical body, in a state of awakening (not sleep), the Holy Prophet (Sallallahu alaihi wa sallam), went from Masjid Haram to Masjid Aqsa. He (Sallallahu alaihi wa sallam) toured the Barzakh (the netherworld), the cosmic worlds and the seven heavens. He (Sallallahu alaihi wa sallam) saw Jannah and hell, saw the wonders of the angelic world (Aalam-e-Malakut) and went beyond the Sidratul Muntaha and beyond the ‘Arsh. He (Sallallahu alaihi wa sallam) conversed with the Lord without any veil between them and had the honor of seeing Almighty Allah Ta’ala with His physical eyes.
Not only His going to the ‘Arsh is a miracle, but His coming back is also a miracle. The Holy Prophet (Sallallahu alaihi wa sallam) is Noor and graced us with His presence in human form. Touring the heavenly worlds in the space of a part of the night and going to the “place beyond the places” (La Makaan) is a miracle of His Bashariyyat (physical form) and living with the people, doing business, handling other affairs, eating/drinking, etc. is a miracle of His Noor.