"You know, this using sunlight for illumination and heating sounds familiar, I've done this before too," Fairy Eternity said with a chuckle as they were on their way back, comfortably stretching herself.
She had been cultivating in her sleep to restore her strength, and now that she was awake, it signified a temporary pause in her cultivation process.
"Fairy had a tough time sleeping, you used solar energy during ancient times as well?"
"I've never heard of solar energy per se, but the method of use is probably similar."
"How did you use it?"
"There was a time when I really enjoyed reading, day and night. Although my eyesight is exceptional and I can see everything clearly even in the dark, it lacked atmosphere."
"So, I summoned a Golden Crow. During the day, I'd have it conserve its energy and not shine, and at night I'd let it light up for me. You know, it was as bright as daylight."
