Surah 52. At-Tur, Ayah 4

This is a metonym for the fact that ever since the dawn of human consciousness men have persistently - although often but dimly - realized the existence of God and have tried, spurred on by the continuous, direct revelation granted to His prophets, to come closer to Him through worship. Hence, Baydawi regards the expression al-bays al-ma'mur as a metaphor for the heart of the believer.

 This is either the Sacred House in Mecca, which is frequented by pilgrims, or a sanctuary in Heaven, which is frequented by angels.

See the last two notes. (3) "The much-frequented House is usually understood to mean the Ka'ba, which the holy Prophet purified and re-dedicated to true worship.