[ The young man carefully plucks the carp out of the water and settles it into the bowl, then carries that to the new pond and tips the bowl so the fish won't have to deal with being touch more often.

Then he gathers a few rocks next to one of the corners of the pond, and sets a fire talisman on. ]

I will bring a proper brazier and keep it going while we are nearby, if I am able. It should make the waters a little warmer on this side, but not too warm.

As to a wish...

Could you forgive Senior Wei? What he did, he did not do to sully your waters, but because he thought it would help, bring up the waters to a temperature that would suit. He meant to give, not take, just did not think it through.