This poem by T.S. Eliot explores the cyclical nature of exploration and discovery. It suggests that by continuously exploring the unknown, one will eventually arrive back at the beginning, having gained new insight and understanding of that place. The poem also references images like a hidden waterfall, children in an apple tree, and tongues of flame being folded into a knot of fire, implying the speaker has achieved a simplified state of clarity and awareness between the changing tides of life.