Step 1: Understanding the Concept:
This question is about the central metaphor in the poem 'Polythene Bag' by Durga Prasad Panda.
Step 2: Detailed Explanation:
The poem compares emotional hurt to a polythene bag. It explores the different characteristics of a plastic bag to explain how hurt affects a person.
One of the comparisons is how the bag reacts to warmth. The poem states that just as a polythene bag melts when it gets a little warm, the emotional hurt inside a person can also soften or "melt down" with a little warmth and affection.
Step 3: Final Answer:
The poem explicitly states that a polythene bag melts when a little heat is applied.