Fishing

I dreamed I was fishing in the pond down the road where I grew up. I was standing on the big flat rock, the only place away from the road where you could really swing your pole because of all the trees and bushes everywhere else. My dad was with me. Suddenly something pulled on the line, I was flying through the air, and I remember thinking: this is a dream. In reality the bamboo would have just snapped. But then I was in the water and I realized it wasn't a dream. It was too realistic. I felt cold and wet, and I never do in dreams. And I was going down, deeper and deeper, and then I knew it had to be a dream. The pond is only about 10 feet deep. I was in a cave, it was dark but I could see, and a giant catfish was explaining something. It wasn't speaking English, but I knew it was trying to tell me I should have gone fishing more with my dad. And I kept saying I would have if I'd known. After I woke I thought: known what?

what am I not doing that I'll regret?