The Tower of Babel , a symbol for human power and control of the earth, all people speaking one language, reminds me of a nuclear reactor -- a device in which nuclear chain reactions are initiated, controlled, and sustained at a steady rate to to produce power.
God through the pouring out of His power, The Holy Spirit at Pentecost overturned Babel's attempt to subdue the earth.
God told man to "be fruitful and multiply and fill the earth to care for/subdue the earth," Genesis 1:28. His Spirit gives grace to people filling the earth from all tribes and tongues and nations and making them one in Christ, His Word!
The farsi text at top center says, "Don't waste God's grace."