Dev Uthani Ekadashi, also called Prabodhini Ekadashi or Devotthan Ekadashi, marks the moment Lord Vishnu awakens from his four-month cosmic sleep known as Chaturmas. According to sacred tradition, Vishnu rests on the great serpent Shesha in the primordial ocean from Ashadha Shukla Ekadashi (Dev Shayani Ekadashi) through this day, and during that period auspicious ceremonies like weddings and sacred thread rituals are set aside. His awakening on the Ekadashi tithi of the bright fortnight of Kartik is therefore one of the most joyful moments in the Hindu calendar year.
The day carries a deep spiritual symbolism: when Vishnu stirs, the universe itself is renewed and blessed. Devotees believe that worship performed on this tithi, even a simple lamp offered with sincerity, carries the merit of elaborate year-long rituals. The Padma Purana and Skanda Purana both celebrate this Ekadashi as supremely purifying, capable of dissolving accumulated sins and granting liberation to the soul.
Dev Uthani Ekadashi also inaugurates the auspicious wedding season. The most beloved expression of this is Tulsi Vivah, the ceremonial marriage of the Tulsi plant (Holy Basil), considered a form of Goddess Lakshmi, to Lord Vishnu represented by a Shaligram stone or an effigy of Krishna. This charming ritual signals that the gods themselves have blessed human unions once again, and families across traditions celebrate with the same warmth and festivity as a real wedding in the home.