What does this song mean? something about it has me very curious?

Rammstein-mutter

I think it's about a test tube baby or the lead singer's opinion against coloning but I'm probably wrong, some of the lyrics seems like it's not in a litteral sense, just tell me what you think.

p.s. it's a little well...twisted..but that's what got me though

The tears of a crowd of very old children

I string them on a white hair

I throw the wet chain into the air

and wish that I had a mother

No sun shines for me

there was no breast that cried milk

there is a tube that sticks in my throat

I have no navel on my stomach

Mother

I was not allowed to lick any nipples

and there was no fold to hide in

no one gave me a name

fathered in haste and without sperm

For the mother who never gave birth to me

I have sworn tonight

I will send her a sickness

and afterwards make her sink in the river

Mother

An eel lives in her lungs

on my forehead, a birthmark

remove it with the kiss of a knife

even if it causes me to die

Mother

Oh give me strength

What does this song mean? something about it has me very curious?

Yeah, I'd say cloning, with the "Mother" being "science". I guess the final verse makes more sense in German, but it could be that the "eel" is some sort of tattoo logo given to the character at birth.