As you have seen intuitively from this description, she was connecting in the dream state with her deep subconscious in the process of reviewing the akashic records, and inserting those observations into an unfolding dream that was perceived by the upper subconscious mind and remembered by the conscious self, as is her practice, to maintain a lucid dreaming state of consciousness that facilitates conscious awareness and remembrance, and ability to even intercede and alter dream events. So she was seeing and identifying with the role of caregiver here because her deep subconscious knew it was her mother and was understandably concerned about her plight, and her heart reached out to that young girl, and so when the aunt was seen to come and nurture the child, she identified with that role and through her ability to insert her current being into the action, put herself in the role of rescuer, within her perception at least.
Keep in mind, she was reacting to the observation of the akashic record and dreaming about it, so that made it subject to alteration through a subsequent influence of some kind coming to bear. So she was, in a sense, to some degree, rewriting history to make her a participant directly when she was reviewing the akashic records of others in her family. So this is a real-life example, through an unusual ability to see this process in action, of how humans routinely are reviewing the akashic records frequently during the day and at night as well, and usually with no conscious awareness but quite often feeling strong emotions about what is being reviewed, and the perspective of the deep subconscious watching what, many times, is a kind of horror show because many of the key events on record are traumatic.