Diwali
Diwali (Deepavali — 'row of lamps') is the most widely celebrated festival across multiple traditions. In Hinduism it celebrates Rama's return to Ayodhya after 14 years of exile and his defeat of Ravana; Lakshmi is worshipped for prosperity; and Kali worship is practised in Bengal. In Jainism it marks Mahavira's attainment of moksha. In Sikhism it celebrates Guru Hargobind's release from imprisonment (Bandi Chhod Divas). In all traditions, lamps are lit to symbolise knowledge dispelling ignorance.
Light a candle or diya right now. Sit with it for one minute. Watch the flame. Let it remind you that a single light can dispel a room of darkness — so can a single act of kindness.
Celebrated at the new moon of Kartik — the darkest night of autumn.