Invictus comes from a poem by William Ernest Henley. Originally untitled; the title was added later by Arthur Quiller-Couch and editor of the Oxford Book of English Verse. Invictus is the Latin word for unconquerable. I will not be going further into literary analysis. But the word unconquerable has appeal. IMO it means that I cannot control fate, but I can control myself.
Invictus
Out of the night that covers me,
Black as the pit from pole to pole,
I thank whatever gods may be
For my unconquerable soul.
In the fell clutch of circumstance
I have not winced nor cried aloud.
Under the bludgeonings of chance
My head is bloody, but unbowed.
Beyond this place of wrath and tears
Looms but the Horror of the shade,
And yet the menace of the years
Finds and shall find me unafraid.
It matters not how strait the gate,
How charged with punishments the scroll,
I am the master of my fate,
I am the captain of my soul.