Describe symbolism in 60 by Rabindranath Tagore

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.