Tulsi Vivah is a Hindu festival commemorating the goddess
Lakshmi's marriage to the deity Vishnu, which takes place on the eleventh day
of the bright (waxing) half of the lunar month Kartik.
Devotthayan Ekadashi is another name for this festival.
On this day, bhaktas (devotees) place a shalagram (a black
stone containing the spiral-shaped fossil shell of a prehistoric sea creature,
understood as a "self-manifest" form of Vishnu) in a pot with a
tulsi plant (considered a form of Lakshmi).
Thus they symbolically combine Vishnu and Lakshmi and hold
the marriage ritual for them, replete with celebratory music.
