Hi Ernst,
I have a friend who I see really struggling with her Sun/Saturn/Rahu conjunction, so I was meditating on her chart and got the following:
She "knows" at some level how she's going to develop across lifetimes, and she's frustrated that she's not there yet. She doesn't want to be in this lifetime, experiencing this part of her soul's development. She wants to be done. She is literally ashamed that she hasn't become Enlightened, or Ascended, or however she thinks of it. She knows that she will, because she will. We all will, at some point. But she's drawing the false conclusion that because she knows she will, that she should be there already, and that's not how it works. She won't be there until it's time (Saturn).
Does this track at all with your understanding?
SHame is always going to beat themselves up about something, but this combo not always that, but the houses involved should point to that.