Ram Das is remembered for a city and a song. The tank he dug — Amritsar, the pool of nectar — became the site of the Harmandir Sahib his son built, and he populated the surrounding town by inviting traders and craftsmen of every caste, which is why Amritsar developed as a merchant city rather than a temple town. The Lavan, his four wedding verses, replaced Vedic marriage rites for Sikhs and describe the union as four stages of the soul approaching God rather than as a contract between families. Sikh couples still walk around the Guru Granth Sahib four times while each verse is sung, and the rite is short enough to finish in under an hour. His wife Bibi Bhani, daughter of Guru Amar Das, is a figure in her own right in Punjabi devotional literature, though she does not appear in the scripture.