The 2nd line itself"On a hot,hot day,and I in pyjamas for the heat,"begins to set in the drama. There is a feeling of respect commanded by the snake which distinguishes it from other animals.Though the poet is fully aware that the snake is poisnous, he did not wish to kill it.He even re-emphasises the fact that the snake was first in line ,again telling us that the snake commanded respect and dignity.
But then there was a clash between voice of education and voice of conscience.Maybe also a clash between the heart ant the mind.
- Education:this is what tells him to kill the snake as it can be a threat to his life.
- Conscience:this is what differentiates him from the rest and tells him snakes are to be admired.
The poet has an instintive liking towards the snake,as if they had a special bond or connection since ages which could not be broken.He was getting some kind of pleasure by quietly looking at the snake while it was drinking water.
Finally when the snake was leaving,for a moment education won over conscience.As the poet picked up a log and aimlessly threw it at the snake.But he immediately regretted his action,which can be known from the line"And so,I missed my chance with one of the lords of life."
Moral of the poem:Don't always blindly follow society's preconcieved notions and beliefs instead listen to your inner voice.