Sparrow Love
The deceased are more important than the living for fishes, especially if they are in love with sparrows. Sparrows live only half-as-long as a fish does, and if life were a series of profound tragedies and if the dead loves were stronger than the living, then fishes would only dream of dead sparrows, as a never-ending preface to new loves.
If love were a swimming sparrow, a fish glide would be a race against time. It is virtually impossible to find a dead sparrow, even when dead fishes abound, for death is a signature of sparrow-love.