The House of Allah, the Kaaba, is the Qibla of Muslims and the focal point of their hearts. It is also a witness to the greatness and power of Islam. When a Muslim sees the Kaaba for the first time, they feel deep reverence and humility and wish for their prayers and desires to be fulfilled.
“The gates of Paradise are opened in eight instances: at meetings, when it rains, during prayer, upon seeing the Kaaba, while making dua in sujood, during Ramadan, and at times of distress.” (Abu Umamah)