Explain this quote:"Everything I'd ever wished for ass a little girl you've already given me"?

Mariam tells Laila that she cannot run away from being punished for killing Rasheed. She says that this is the end for her and she is content with it. Mariam says that Laila and Aziza gave everything that she had ever longed for to her.

“For me it ends here. There’s nothing more I want. Everything I’d ever wished for as a little girl you’ve already given me. You and your children have made me so very happy. It’s all right, Laila jo. This is all right. Don’t be sad.” ch 46