What is the theme of poem The Woodspurge?

The theme of the poem "The Woodspurge" by Francis Thompson is the power and beauty of nature, and the ability of nature to bring comfort and solace to those who are experiencing hardship or suffering. The poem explores the idea that even in the midst of bleakness and despair, there is always beauty and hope to be found in the natural world. The poem's imagery and language are rich and vivid, and Thompson uses personification to give the natural world a sense of agency and personality. The poem is also marked by its use of religious imagery and symbolism, with references to the Virgin Mary and the Garden of Eden.