The Enigma of the number seven

Across cultures and centuries, the number seven has had a magnetic effect on the human spirit. Perhaps because seven is not just a number — it is an idea, shimmering at the intersection of myth, science, and the mysterious. The Thirukkural too is a fortress built on the number seven. Add one couplet, and the count falls apart. What does the seventh couplet in the Kural say? Listen in.