Why are daughters mean to their mothers?

At a very young age all children can be mean, harsh and cruel when their demands are not met. When, at the age of 5, my daughter asked for a sibling and told her that I could no longer provide her with one, she shouted at me that if I had taken better care of her elder sister she wouldn't have died. This stubbed me, but even at that point I felt her own pain and the need to blame someone. So, maybe, daughters are mean to their mothers when they feel pain, anger, fear…

She's not mean anymore because she knows she can come to me whenever she is angry, sad, nervous, pissed off, anxious, scared, disappointed, bored, confident, in pain, hungry, lonely, excited, heartbroken, in love. So, she comes to me all the time. We talk, we argue, we cry, we laugh, we hug.. there's no room for her to be mean.

Thankfully, this was the only time she was mean to me. She's a teenager now. Of course, at times, she can be a little rude and disrespectful to me but, to be honest, I'd be worried if she weren't, adolescence is a tough phase for children.

Hello, I have a question about astral projection. I started to get interested in this a little while after my mum passed in april. I thought I may be able to see her and speak with her if I managed to achieve astral projection. Since this interest, every time i sleep on my back I go into sleep paralysis. However, I cant progress into astral projection because it is very scary for me as I feel like I'm suffocating when this happens. I panic and force myself to wake up. This only ever happened about once a year before this. It sometimes lasts a long time. This has happened about 3 times per week since my mum died, as mentioned on a previous post. I no longer try to go into it anymore(due to the suffocating feeling), but it still happens. I read that sleep paralysis is the pathway to astral projection. Why has this started to happen so frequently since simply taking an interest in it? Is this connected to the afterlife? I am concerned about it as I now cannot seem to stop this happening. Could it be my mum trying to communicate? Im asking due to more knowledge around this in this group.

Psychology sustains that, generally, children have a competitive relationship with the parent of the same sex while they get along better with the opposite-sex parent(Oedipus complex). Maybe this could explain why a mother-daughter’s relationship can seem tense, especially viewed from the daughter's part.

From personal experience I would say that there's no straight answer to this question or not only one answer, it depends on mother's and daughter's personality, behaviour and age.