Power steering lines...

I have a leak on the power steering line… The line for some reason runs to the back of the car. I didnt know this. Where does that line run to? the differential. If so what is your opinion. My old 240 didnt have that and it was a super hicas as well.

super hicas as a line that runs straight to back of the car, where the diff is but there is a power steering unit there aswell