Nartūğan/Nūrtūğan – the oldest Turkic holiday on the winter solstice (Hungarians call it «Karachun»). This night is considered the longest. It is interpreted in two semantic variants: «Qara Tün» – black night and «Qara Shyn» – mighty peak, dangerous peak. In the past, fires were lit on this night to warm the ground. This holiday – the day of the winter sun – is known in Slavic mythology. In Karelian folklore Karachun is a mythical figure who kidnaps women, mostly girls named Svetlana (light, warmth, life). All these are remnants of the folk understanding of the seasons in the cycle of nature.