Question

why does the traveller doubt that he shall ever come back

Answer 1

The poet/traveller is pragmatic enough to know that one way leads to another meaning that life moves on, retracing one's steps is not in the nature of things. The choices made today will mark his life later through the years.

Answer 2

Explanation:

The poet/traveller is pragmatic enough to know that one way leads to another meaning that life moves on, retracing one's steps is not in the nature of things. The choices made today will mark his life later through the years.