Then there was the church and the villagers on the sidewalks, the red geraniums on the graves in the cemetery, Pérez fainting (he crumpled like a rag doll), the blood-red earth spilling over Maman’s casket, the white flesh of the roots mixed in with it, more people, voices, the village, waiting in front of a café, the incessant drone of the motor, and my joy when the bus entered the nest of lights that was Algiers and I knew I was going to go to bed and sleep for twelve hours.
I'm having trouble understanding what he meant when he used the phrase "nest of lights". I only know the meaning of nest as a place where a bird lives.
“Hitting all red lights” meaning?