Imam Ar-Ridha’ (a.s.) said to one of his companions:
اَلَيْسَ اللّهُ يَقُولُ بِغَيْرِ عَمَد تَرَوْنَها فَقُلْتُ: بَلى قالَ: ثُمَّ عَمَدٌ، لكِنْ، لاتَرَوْنَها!
Does God not say that heaven is erected upon an invisible pillar? I said: yes. He said: so there is an invisible pillar that you do not see . 1
Nowadays, it has been proved that celestial bodies are fixed in their circuits thanks to the balance of gravity and repulsive forces. Gravity attracts them towards each other like a great chain, and repulsive force separates them from each other and their complete balance enables them to revolve in their circuit without any change and deviation, suspended in the immense space on this invisible pillar. Was there any interpretation more eloquent than the above for expressing this reality in that time when these mysteries were not yet solved? And isn’t this one of the scientific miracles of our great leaders.