"Ah! Well, I am no teacher myself, but I'll do my best."

He sounds cheerful enough as he puts down his teacup. (Now, how did they explain it to him when he was a young child?)

"A cultivator draws upon qi to perform their talents. It can be very easy to exhaust yourself if you rely solely on your own qi, so cultivators also strive to expand their skills until they have an always-burning crucible of energy to call upon. Is that where you pull your power from as well?"