my question is regarding the hadeeth: The Prophet (peace be upon him) said to me: “O Abû Dharr! Do you know where the Sun goes when it sets?” I said: “Allah and His Messenger know best.” He said: “It goes until it prostrates beneath the Throne. Then it seeks permission and permission is granted to it. Soon it will prostrate and it will not be accepted from it, and seek permission and will not be granted permission. It will be said to it: ‘Go back where you came from.’ Then it will rise from its setting place. This is Allah’s statement: ‘And the Sun runs on to its place of settlement. That is the determination of the Mighty the Knowing. [Sûrah YâSîn: 38]

What does it mean that the sun runs to its place of settlement? Is this somethiing particular to the horizon visible to the prophet sws and his sahaba?