Uttarayana
Uttarayana refers to the period in Hindu solar calendar when the Sun begins its northward journey. This transition marks the end of Dakshinayana, the Sun's southward journey. The most significant event associated with Uttarayana is Makar Sankranti, which typically falls on January 14th or 15th of the Gregorian calendar. This day is celebrated as a major festival across India with regional variations in names and customs, such as Pongal in Tamil Nadu, Lohri in Punjab, and Bihu in Assam. Hindus consider Uttarayana a propitious time for new beginnings, spiritual practices, and auspicious ceremonies like weddings and housewarmings. It is believed that dying during Uttarayana leads to liberation or moksha. The change in the Sun's position is symbolically linked to a shift towards light, knowledge, and spiritual awakening. Ancient Indian astronomy and astrology intricately define and observe Uttarayana, understanding its impact on seasons and celestial events. The transition signifies a period of increasing daylight and warmth, ushering in the spring season.