(1) The length of "two years" coincides with the lovesickness of "Autumn Festival", and the distance of "a thousand miles" just shows the smallness of "a lonely boat", with strong contrast and far-reaching implications. It vividly depicts the author living in a foreign country for more than two years, facing this time-the Double Ninth Festival in autumn; Facing this place-thousands of miles away, on the shore of the water, on a lonely boat; My heart is full of loneliness and sadness.
(2) The similarity lies in the feelings expressed. Both of them are wandering poets, and they both aroused strong homesickness in the face of the Double Ninth Festival. The difference lies in the lyrical way. Xu's poems are implicit, not deeper than words but deeper than feelings; Wang's poems express his mind directly and melt deep feelings into the pen.
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