It shows that that particular and insignificant journey was like a key to a journey which was universal and an assembly of wonders.
If the pronoun refers to Almighty God, it is like this: “He invited one of His servants to journey to His presence; and in order to entrust him with a duty, sent him from the Sacred Mosque to the Farthest Mosque, where He caused him to meet with the prophets who were gathered there. Then after showing that he was the absolute heir to the principles of all their religions, conveyed him through His realms in their inner and outer aspects as far as ‘the distance of two bow-lengths.’”
He was certainly a servant and he journeyed on an ascension that was particular, but he held a trust that was related to the whole universe, and a light which would change the universe’s colour. Since he had with him a key to open the doors of eternal happiness, Almighty God described this Being with the attributes of hearing and seeing all things. For in this way he could demonstrate the world-embracing purposes and instances of wisdom of the trust, the light, and the key.
And, for example:
Praise be to God, Creator of the heavens and the earth, Who made the angels messengers with wings, two, three, or four [pairs]: He adds to creation as He pleases, for God is Powerful over all things.1
In this Sura, the Qur’an says: “By adorning the heavens and the earth in this way and displaying the works of His perfection, their All-Glorious Creator causes innumerable spectators to extol and praise Him. He decks them out with uncountable bounties so that the heavens and the earth praise and extol unendingly the Most Merciful Creator through the tongues of all the bounties and those who receive them.” After this it points out that since the Creator has given men and the animals and birds members and wings with which to travel through the towns and lands of the earth, and since that All-Glorious One has also given wings to the angels, the inhabitants of the realm of the heavens, in order to fly through the celestial palaces of the stars and lofty lands of the constellations, He is certainly powerful over all things. The One Who gives wings to a fly, to fly from fruit to fruit, and wings to a sparrow to fly from tree to tree, is the One Who gives wings to the angels to fly from Venus to Jupiter. Furthermore, the angels are not restricted to particularity like the dwellers of the earth; they are not confined by a specific place. With the words: two, three, or four [pairs], it suggests that at one time they may be present on four or more stars; it gives details. Thus, through describing “the arraying of the angels with wings,” which is a particular event, it points to a universal, general workshop of Divine power and its immensity, and
Qur’an, 35:1.