Trees are the earth's endless effort to speak to the listening heaven.

The line imagines trees as a living bridge between earth and sky: rooted in soil yet reaching upward, they become nature’s “speech” directed toward the transcendent. Tagore often frames the natural world as expressive and spiritually charged, where material forms gesture toward an unseen unity. In this metaphor, “endless effort” suggests both persistence and humility—earth cannot fully become heaven, but it continually aspires, growing, stretching, and renewing. The “listening heaven” implies a responsive cosmos, inviting a relationship rather than a void. The quote thus elevates ordinary ecology into a vision of communion: growth as prayer, and nature as a language of longing.