Atlas was the god who had the job of carrying the world on his shoulders. So this person would have the weight of the whole world on their shoulders, so to speak.
The Titan Atlas.
To have the weight of the world on your shoulders means that your commitments have you under pressure. This expression comes from the Ancient Greek Titan Atlas, who was forced to literally carry the world on his shoulders.
Atlas
He was the son of Titans. His job was to carry the heavens on his shoulders.
like atlas, to take the world on my shoulders
The Titan who carried the Earth was Atlas -- you can't really carry the sky on your shoulders since it is only air.
Carry the weight of the heavens
"like Atlas, to take the world on my shoulders,"C. "I never heard what compensation he received for that"
It was too heavy to carry up the stairs. You must carry the weight of the world on your shoulders.
Not the world, but the heavens. Zues condemed him to hold the sky up for all time after the Titans revolt.
The firemans carry is when you pick someone up and throw them over both of your shoulders behind your neck.
No one killed Atlas. He was a Titan, therefore immortal. But Zeus did sentence him to carry the weight of the world, so I suppose that could be what you meant.