Yes actually.
Mother/Daughter is as pure as you can get as it generates pure eros and agape based love. The mother can also pass down her experience of attaining pleasure as a woman as well. A woman would perfectly understand a woman's body, a woman knows perfectly what a woman likes.
As Humans at their core are tribal, the F/F pairing leads to less instinctual competitiveness than a M/M pairing or even M/F since we are largely a polygamistic species.
So yes, there is no purer love than that between mother and daughter.
