Answer:
In the very beginning of the poem, the poet says that he wants to thank God. In fact, he admits that his life has no ray of hope. Rather his future seems to be as dark as a pit. But then also he is grateful to God for his 'unconquerable soul'. He says that no pain can be able to curve his soul.
Step-by-step explanation:
"Invictus" has a mood of perseverance and striving. When met with unfortunate circumstances, there are many ways to react. In this poem, the speaker is saying that he will face anything that comes his way with courage and endurance.