I dreamed of fishing, but I couldn't catch any fish.

mean

Dreaming of fishing, I can't catch any fish myself: today is suitable for going out for a walk, and the weather is also very cooperative. Listen to your lover's advice, drive to the suburbs to relax, and you can have a full meal with a peasant flavor. You can also ride horses and fish. If you can find a greenhouse where the sun shines through the glass window, you can take a nice nap to make up for the hard work/study.