Here are some other translations of said verses.
NIV
Then Simeon blessed them and said to Mary, his mother: “This child is destined to cause the falling and rising of many in Israel, and to be a sign that will be spoken against, so that the thoughts of many hearts will be revealed. And a sword will pierce your own soul too.”
NASB
And Simeon blessed them and said to Mary His mother, “Behold, this Child is appointed for the fall and rise of many in Israel, and for a sign to be opposed-- and a sword will pierce even your own soul–to the end that thoughts from many hearts may be revealed.”
The Message
Jesus’ father and mother were speechless with surprise at these words. Simeon went on to bless them, and said to Mary his mother,
This child marks both the failure and
the recovery of many in Israel,
A figure misunderstood and contradicted—
the pain of a sword-thrust through you—
But the rejection will force honesty,
as God reveals who they really are.
Amplified
And Simeon blessed them and said to Mary His mother, Behold, this Child is appointed and destined for the fall and rising of many in Israel, and for a sign that is spoken against-- And a sword will pierce through your own soul also–that the secret thoughts and purposes of many hearts may be brought out and disclosed.
NLT
Then Simeon blessed them, and he said to Mary, the baby’s mother, “This child is destined to cause many in Israel to fall, but he will be a joy to many others. He has been sent as a sign from God, but many will oppose him. As a result, the deepest thoughts of many hearts will be revealed. And a sword will pierce your very soul.”
KJV
And Simeon blessed them, and said unto Mary his mother, Behold, this child is set for the fall and rising again of many in Israel; and for a sign which shall be spoken against; (Yea, a sword shall pierce through thy own soul also,) that the thoughts of many hearts may be revealed.
NKJV
Then Simeon blessed them, and said to Mary His mother, “Behold, this Child is destined for the fall and rising of many in Israel, and for a sign which will be spoken against (yes, a sword will pierce through your own soul also), that the thoughts of many hearts may be revealed.”
ESV
And Simeon blessed them and said to Mary his mother, “Behold, this child is appointed for the fall and rising of many in Israel, and for a sign that is opposed (and a sword will pierce through your own soul also), so that thoughts from many hearts may be revealed.”
NCV
Then Simeon blessed them and said to Mary, “God has chosen this child to cause the fall and rise of many in Israel. He will be a sign from God that many people will not accept so that the thoughts of many will be made known. And the things that will happen will make your heart sad, too.”
CEV
Then he blessed them and told Mary, “This child of yours will cause many people in Israel to fall and others to stand. The child will be like a warning sign. Many people will reject him, and you, Mary, will suffer as though you had been stabbed by a dagger. But all this will show what people are really thinking.”
Young’s Literal Translation
and Simeon blessed them, and said unto Mary his mother, `Lo, this [one] is set for the falling and rising again of many in Israel, and for a sign spoken against --(and also thine own soul shall a sword pass through) – that the reasonings of many hearts may be revealed.’
Wycliffe New Testament
And Simeon blessed them, and said to Mary, his mother, Lo! this is set into the falling down and into the rising again [into the falling and into the rising again] of many men in Israel, and into a token, to whom it shall be against-said. And a sword shall pass through thine own soul, that the thoughts be showed of many hearts.
In other words, the original post is way off base. The only thing needs to be explained is how on earth I’m supposed to look at this as being Simeon prophesying about the division that would result from the ministry of Jesus and the pain that would be felt by Mary by seeing Him crucified.