Final answer:
In the poem 'I Thank You God' by Phillis Wheatley, the narrator assigns symbolic meanings to the colors white and black. The narrator, who is of African descent, may find solace and hope in their blackness, despite facing discrimination.
Step-by-step explanation:
In the poem 'I Thank You God' by Phillis Wheatley, the colors white and black hold symbolic meaning for the narrator. White represents purity, innocence, and virtue, while black is associated with evil, darkness, and sin. The narrator, who is of African descent, may be glad to be black because it allows them to join the 'angelic train' and participate in the redemption offered by God, despite the scorn and discrimination they face due to their race.