Guilt in my opinion originates from a factor in our childhood. I dont think its hereditary but if our homelife includes generations of narcissistic behaviour then it could feel like its passed down.
I know its not passed down because although I am a child of a narcissistic mother (and a nurturing one) I stopped the flow on to my children by refusing the trend of becoming a controlling parent. If hereditary I couldnt have succeeded. So why did I end up suffering guilty intrusive thoughts?
As my father worked 14 hour days 6 days a week, our mother was our prime parent. She didnt work. Outsiders never knew. Its what went on behind closed doors that scarred us forever.
As a young child, there is a huge difference between control and guidance. As teenagers there is a gap between a parent with recommendations and domination. As we arrive in our 20's we cant deal with our bossy parent any longer and fight back against what is by now manipulation and a gang mentality...even emotional blackmail.
The narcissistic parent is clever. They'll use any means at their disposal to control. In my case turning our loving father and relatives against us. They can be possessive of your friends and even try to coerce you to choose a partner preferring one that can be "moulded" into their deputy...more control.
If you've read this far you might also be a victim. What can you do?
Im 61yo. Right up till 54yo I tried everything but nothing worked. My sister and I broke off all contact, put "return to sender" on letters from our mother and as she had ruined my first wedding in 1985, got a court order so she couldnt ruin my second wedding (her threat)
It is highly unlikely a relationship with a narcissist of little contact will work as the control they lust for isnt with them, its with you. How dare you control your own life!
So guilt forms in ways like being told- they are never wrong, you are at fault, you make poor choices, if you do that I'll do this, if you do that I'll ruin your life, etc
Add to that some anxiety if the narcissistic parent is a "yeller". The expectations are too great as to your immature capacity to "be a good boy". You are their robot.
I attended a psychologist. I'll never forget his words at the last session "do you think you need her permission to live without fear?"
That was the light that sparked me realising her hold was a firm grip.
Demand to yourself the basic right to mental freedom. Walk away, get help to repair the guilt wound ..into a scar.