What is the ruling on the relationship between two women, where one treats the other as her daughter, embracing her and kissing her head and hands, with strong love, piety, and moral commitment between them?

The saying "There is no modesty in religion" is mistaken, for modesty is a branch of faith and is entirely good. Evidence for this includes prophetic traditions such as: "Faith has seventy-odd branches, and modesty is a branch of faith," and "Modesty and faith are intertwined; if one is removed, the other is removed." The more correct statement when asking about a matter that one might feel shy about is to say, "Indeed, Allah is not ashamed of the truth," as Umm Sulaym (may Allah be pleased with her) said.