Solomon's prayer expands the purpose of the newly built Temple, transforming it from a strictly national spiritual center into a destination for all of humanity [ביאור שטיינזלץ]. People from distant lands, who have no intention of converting or joining the Israelites [אלשיך], are drawn to arrive after hearing of God's greatness, His power, and His active involvement in the world [מצודת דוד, מלבי״ם]. Sometimes, these visitors arrive with incomplete or mistaken beliefs, such as the idea that God is confined solely to the physical structure of the Temple [אלשיך].
A striking contrast is drawn between how God is asked to respond to the prayers of an Israelite and those of a foreigner. When an Israelite prays, God is asked to look into the person's heart, judging their actions and personal worthiness before answering. However, for the foreigner, Solomon asks God to grant the request unconditionally, exactly as it is spoken. This holds true even if the foreigner is unworthy, has not repented, or if the request itself is flawed and could potentially lead to sin [רלב״ג, מלבי״ם, אלשיך].
The reason for granting these requests without examining the visitor's heart is deeply educational. The primary goal is to draw the nations of the world closer to serving God [רלב״ג]. When the foreigner returns home and sees that his prayer was answered, he will realize that God's care and power are not restricted to the Temple but extend across the entire world. This realization will help him develop a deep reverence for God, much like that of the Israelites [מלבי״ם, אלשיך]. Furthermore, answering these prayers immediately serves as a global declaration that God's presence rests upon this house, making it a true gateway to heaven [רלב״ג, מלבי״ם]. Ultimately, this also highlights the special standing of the Israelites, as it is through their merit alone that this resting place for the Divine Presence was built [אלשיך].