Happy Makar Sankranti celebrates the Sun’s transition into Capricorn (Makar), marking winter’s end, spring’s start, and the harvest season, with joyous traditions like kite flying, holy dips, and sharing sweets made of sesame and jaggery (til-gul), symbolizing new beginnings, prosperity, and light over darkness across India under various names like Lohri, Pongal, or Bihu.