Context : The traveller is tempted to stay in the garden because he is attracted by the beauty of the snow-covered garden. But at the same time he thinks that hiş horse will think it strange and he will feel uneasiness here.
Explanation : In this concluding stanza the traveller says that no doubt the garden is very beautiful and attractive. There is darkness and silence all-around. He wants to stay there. But at the same time he is reminded of the common duties which he has to fulfil before , i.e. eternal .
N.B.: This stanza was favourite of Pt. Jawaharlal Nehru because it reminded him of a lot of tasks which he had to perform in the service of the country.