Question

Why is the poet ending the poem with the lines that indicate he is the master of his fate and the
captain of his soul?
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Answer 1

Be he is the only person who can control his soul and is responsible for his son's good deeds✓✓

Answer 2

The last two lines of William Ernest Henley's poems Invictus contain invaluable advice those who blame in god for their failures not only about God but the mindset that makes our surrender while faced with challenges. Challenges make one stronger but a mentally submitting oneself to those impediments extinguishes the inner light that one carries inside the heart from infancy. Through these lines, William tried to say that it's not about how difficult the path is it's about once attitude to keep moving forward without submitting oneself to fate's recourse.