Answer:
The text that best illustrates the loss of culture in the poem is: "Without a vision he had migrated to the city "
Step-by-step explanation:
The main theme of the poem mentioned in the question above is the loss of cultural identity that the speaker's father suffered. This is very evident in the line where the speaker states that his father, when he found himself in a situation where cultural customs were no longer attended, migrated, aimlessly and without vision, to the city, where the traditions of his people were nonexistent and definitely marked the loss of identity.