Nature and Simple Pleasures

The contrast between the oppressive, artificial life of London and the restorative power of nature, as well as the value of simple, innocent joys (like a child's delight in a bonnet or a butterfly collector's passion) as a refuge from existential despair.

Rutherford contrasts the freedom of country play—fishing, bathing, skating—with the gloom of Sunday, celebrating 'perfect poetic pleasures' of rural childhood.

The butterfly-catcher finds redemption and purpose in the study of butterflies, representing a turn to nature as a source of solace.