the poet in the wanderer told the experience that felt by someone who is on an exile.
In the poem, the poet reminiscence the better times before he is on exile and what he might do when he manage to come out from it. The grief on that dream come because he realize that the dreams would most likely never be realized.
In The Wanderer, the pair that best speaks to the complexity of tone between the writer's fantasies and his current conditions are mournful or longing. Being mournful you tend to be brimming with distress or pitiful and along these lines, you long for something that you don't have.
