Bright star! would I were steadfast as thou art—
Not in lone splendour hung aloft the night,
And watching, with eternal lids apart,
Like Nature's patient, sleepless Eremite,
The moving waters at their priestlike task
Of pure ablution round earth's human shores,
Or gazing on the new soft fallen mask
Of snow upon the mountains and the moors—
No—yet still steadfast, still unchangeable,
Pillow'd upon my fair love's ripening breast,
To feel for ever its soft fall and swell,
The phrase ends with an image of the  personified  star ‘gazing’ on snow covered moors and mountains. Note the alliterative “m"s linking these words to reinforce their significance.  This emphasises the desolation, as both are bleak and uninhabited. 
 The wintry imagery is apt for this poem, suggesting loneliness and harshness. Nature is uncompromising, as is the steadfast ideal that Keats seeks. 
 Note the line ends with a  caesura ; a pause to introduce a turn or  volta . This is the ‘answer’ to the proposition of the sonnet. 
