Final answer:
Phillis Wheatley's purpose shapes her description of enslavement and captivity in her poems. She emphasizes freedom and resistance to convey her resilience.
Step-by-step explanation:
Phillis Wheatley's poems highlight her experiences of enslavement and captivity, particularly in lines 20-31 of her poem 'On Being Brought from Africa to America.' Her purpose shapes her description in each case. She portrays captivity as dehumanizing but highlights hope and faith in her ability to overcome. This can be seen in her emphasis on freedom and resistance in both poems to convey her resilience.