Why was the speaker wandering in "I Wandered Lonely as a Cloud" by Wordsworth?

It is not stated blatantly, in the poem "I Wandered Lonely
as a Cloud", as to why the speaker is wandering about. Instead, the poem focuses upon
what happened as the speaker wandered and what came out of his
wandering.

This being said, it seems to be much more
important as to the outcome of the wandering than the wandering itself. Therefore, as a
reader, one could infer a reason as to why the speaker was out wandering. Given poems
are subjective, and inference may be used in all types of texts, a reader could give
their own interpretation as to why the speaker was out when he came upon the field of
daffodils.

One could infer that the speaker was having a
bad day (given after, when having a bad day, he is able to reflect upon the field and
feel better) and simply out for a walk. This could be justified through using the first
line of the poem.

The word 'lonely' could refer to the fact
that the speaker did not feel as though he had anyone to talk with and this was why he
was out walking. Another interpretation could be that the speaker was out simply alone
(lonely) and happened upon the field.