Fishing with your grandpa was never about the fish. It was about the hours he chose to give you.

The fish were the excuse. What was actually happening was a grown man choosing to spend whole mornings sitting next to you in silence, doing something with no outcome attached, which is time given rather than time spent. That is why it stayed with you and why the catch is not the part you remember. Activities like that are containers.

Pick something pointless to do with somebody now, regularly, with no result at the end. Fishing, driving, a long walk. The uselessness is what makes room for the hours.