"A mon frère blanc" is a poem written by Léopold Sédar Senghor. In this poem, written in French, the poet contrasts the life of a Black person with the life of a white person. Whilst at first glance one might be forgiven to think that this poem is simply a poem about the differences between the races, it soon becomes apparent that there is also a deep feeling of loneliness to be found within this poem.
For example, when analyzing this poem with regard to loneliness, you could mention that the choice of examples given when talking from the Black person's point of view really points towards loneliness by being constantly linked back to being Black: "j’étais noir." Regardless of whether a Black person is being born ("je suis né"), is spending time in the sun ( "je suis au soleil"), or even is dying ("je mourrai"), the poet always brings the reader's attention back to the fact that ultimately, this person remains a Black person. This emphasis on being Black highlights how a Black person must feel lonely and isolated, as they feel excluded from the lives of white people.
The lives of white people, on the other hand, are described through the use of several colors in the second part of the poem. This is in stark contrast to the life of Black people in the first stanza, which is always just described as Black, thus emphasizing the isolation and loneliness Black people must be feeling. The use of different colors in each line for the white man, showing how exciting and varied life can be if you are white, underlines how lonely a black person must be feeling, given that in their lives everything seems to be reduced to being Black.
The speaker in the poem is clearly frustrated by being in this position and by being isolated merely because of their skin color. This is why the poem finishes with the poignant question, "Who is the colored man?" ("Qui est l’homme de couleur?")