"On the seashore of endless worlds children meet." Based on the phrase "endless worlds," one can see that this poem may have some metaphysical, or supernatural, qualities. The idea of endless worlds suggests a universal or infinite quality of some sort. In addition, Tagore introduces the image of a seashore in this sentence. He could be talking about an actual seashore, but the metaphysical context suggests that Tagore is talking about a symbolic one. A symbol is a physical object, action, or gesture that also represents an abstract concept, without losing its original identity. Symbols appear in literature in one of two ways. They can be local symbols, meaning that their symbolism is only relevant within the context of a specific literary work. They can also be universal symbols, meaning that their significance is based on traditional associations that are widely recognized, regardless of context. In "60," the symbols are universal. Tagore is talking about a seashore, which is the opposite of the sea. The sea traditionally represents infinity—an idea that Tagore has already suggested with "endless worlds." Following this line of thinking, the opposite of infinity, or heaven, is the mortal, human world. So, the seashore could represent this human world.