1. The Universal Light of Guru Nanak Dev Ji's Prakash Utsav
Every year on the luminous full moon night of the lunar month of Kartik (**celebrated globally over three days of devotional observances**), millions of Sikhs and spiritual seekers worldwide commemorate the supreme advent of their faith: Guru Nanak Jayanti (Gurpurab / Prakash Utsav).
The festival marks the birth anniversary of **Guru Nanak Dev Ji (1469–1539)**, the first of the ten Sikh Gurus and the revolutionary founder of Sikhism. Born at Rai Bhoi Ki Talwandi (modern-day Nankana Sahib in Pakistan), Guru Nanak traveled thousands of kilometers on four epic spiritual journeys (*Udasis*) across India, Tibet, the Middle East, and Central Asia, dismantling entrenched caste hierarchies, empty ritualism, and religious sectarianism. He established the egalitarian foundational pillars of Sikh philosophy: **Naam Japna** (constant remembrance of the one formless Creator, *Ik Onkar*), **Kirat Karo** (earning an honest and righteous livelihood), and **Vand Chhako** (selflessly sharing one's food and wealth with all humanity).
The supreme epicenter of Gurpurab is **Sri Harmandir Sahib (The Golden Temple)** in Amritsar, Punjab. On the sacred eve of Kartik Purnima, the entire 16th-century gilded shrine and its marble causeway are illuminated by hundreds of thousands of flickering earthen lamps (*Diyas*), candles, and golden lights (**Deepmala**), mirrored brilliantly across the holy waters of the **Amrit Sarovar**. Tens of thousands of pilgrims sit in serene contemplation listening to non-stop divine Gurbani recitals, while the sacred birth hour hymns culminate at 1:20 AM amidst the blowing of conches and triumphant choruses of *"Bole So Nihal... Sat Sri Akal!"*