Q: (L) Who made the Nazca lines in South America and what was their purpose?
A: Those were natives living in the area at the particular time who were highly advanced spiritually and they put those lines there to call to others that were coming from what they perceived to be an outer space location.
Q: (L) Were they symbols of power in any way?
A: Well, some may have perceived them as such but they were mainly an effort to call forth those who had been worshipped and had appeared to them previously from the outside including not only the Lizard Beings, but other travelers.
I personally haven't been to the location but the quote "they put those lines there to call to others that were coming from what they perceived to be an outer space location." struck out to me. Could an outer space temporal location also be perceived by them as us right now or our near future selves at a future time?