What is the chief effect of the repeated “how” in 88:17–20?

Supplementary Practice 28 — Comparative Rhetoric of Sūrat al-Aʿlā and Sūrat al-Ghāshiyah

• Repetition only identifies a time
• Each how is a literal question requiring an immediate answer
• Directing attention successively to varied signs of creation
• The four scenes share no meaningful link