Answer:
Despair.
Step-by-step explanation:
The two excerpts of poetry are from Maya Angelou's "The Caged Bird" and "Sonnet 29" by William Shakespeare. And both poems talk of suffering and freedom.
The use of the phrase "grave of dreams" shows the metaphorical bird's restricted life and desire to be free. Likewise., Shakespeare's poem also mentions the speaker's "outcast state" while "troub[ling] deaf heaven with [his] bootless cries." Both the poems talk of the despair and sadness of the speaker(s).