What is the presumed meaning of the Nazca Lines, vast geoglyphs etched into the Peruvian desert?

Astronomical calendar

The Nazca Lines, created between 500 BCE and 500 CE, remain one of the greatest archaeological enigmas. These geoglyphs, only visible from the sky, depict animals, plants, and geometric patterns. The most widespread theory suggests that they served as an astronomical calendar or spiritual guides for rituals related to astronomy. Their precision and scale demonstrate an advanced understanding of engineering and astronomy by pre-Columbian peoples.