The text is a poem by William Wordsworth, and from the  title we can notice that it will be about a lady living hidden form the masses. Furthermore the use of words like "dwelt" reveal an ancient language linked to the author's age.
The poem is a ten-line long composition and for study purposes  it can be divided in two parts. The former one is the shortest and gives some information about the lady and her personality, whereas the second one has an explanatory role, as it outlines the girl's qualities and uniqueness.
The first quatrain deals with a lady living in a rural place, loved and known by few and appreciate by nobody.

The lady is very young, as the poet uses the word maid, and the rural place, near the Dove, is situated in Scotland and makes the reader understand that perhaps not many knew her because of the difficulties to reach the area.
Moreover the poet uses figures of speech to emphasize his words and ideas, and also to make the reader interested, for example using an enjambment in "falls/ of Dove", which makes quicker the read, or stressing on words as " very few" to outline it.
Also, revealing her loneliness with words such as "very few loved her", the poet underlines her hidden nature and to show how she was unknown to mankind.
Therefore her being hidden is reasserted by the violet's image. This is a metaphor that reveals the girl shyness and that she' s not easily recognisable or known.
Besides the poet represents her beauty and noble nature using a simile to compare her with a star, which is also seen as fair, meaning that she had an inner balance, and alone in the sky, exalting her uniqueness and rarity. Furthermore the girl's name is consistent with all that as been said on her, as Lucy mans fair star.
Finally the use of "cease to be", a verb of perception, to explain her death reveals how much she was important for her and how her loss struck him.
Perhaps the poet's message is that people do not see that beauty and uniqueness may be hidden and not immediately evident, making the poet regret about this.