A. A garden beneath which rivers flow
B. A solid structure firmly joined together
C. A shining star in the sky
D. A promise of victory for the believers
It depicts believers who, like a sturdy wall whose components are securely fastened together, stand together in discipline and purpose. This metaphor highlights human cooperation, solidarity, and strength.
The phrase emphasizes the value of unity and group power on a larger scale. A cohesive group is powerful and tenacious in the face of difficulties, just as a well-constructed edifice is difficult to destroy.