But he mentions Shelley by the alias Sun-treader,The air seems bright with thy past presence yet
But thou art still for me, as thou hast been
I may be wrong but the seeming meaning of "Sun-treader" could be "someone who treads on Sun". Now, the metaphoric meaning instilled in that alias could be that Shelley was considered divine by Browning and hence he could tread the sun without burning himself. Or Browning could have made the references to Shelley's poem Ode to a Skylark where Shelley wroteSun-treader -- life and light be thine for ever ;
Thou art gone from us -- years go by -- and spring
...
So, once again to summarize my post I want to repeat: Why Browning called Shelley as "Sun-treader" in his poem "Pauline"?In the golden lightning
Of the sunken sun,
O'er which clouds are bright'ning,
Thou dost float and run;
Thank you.
P.S. : I won't mind (but will be thankful) if you point out some linguistic mistakes in my post, for example: I used "has" in the title of my question but in summarization I omitted it so which one is more suitable can be mentioned in replies.