if you live in any state of mind long enough, the patterns of thought, and feeling, become somewhat habitual, almost normalised. you become someone else. literally. (it doesn't have to be drugs, it could be a state of mind (emotional) or... environment (war, prison, diff ppl u hang out with at school/work or whatever).
then you start to question what really is normal. or what "you" really is. and why and how this "you" came to be (and is ever changing).
just realise the ego is nothing but a force of nature to keep one alive. alive for whatever purpose, doesnt matter. being alive by natures definition, is better than being dead... for any reason.
most decisions in life, if not all, are ego based. the decisions you make, the way you perceive situations, the way you act upon them.
altering your perception, through drugs, or thought, or whatever means really kicks you in the ass. You realise you're wrong in so many ways, and there's so many other things out there that you were too prideful or egotistical to get over and accept.
you come to these realisations not through just plain logic or thought, but you actually live it, you actually realise it through the inner self. self inception if you will lol.
it will never go away. the feeling of the ego fighting your conscious.
the best you can do is realise the feeling and then "control" it (aka not act upon it) when you feel it.
i'm pretty sure the highest level monks still feel all those feelings of jealousy, fear, anger etc. they have just learnt where it comes from (ego), and realised the feeling and learned to ignore/control the temptations.
that's all it is.
awareness of what it is, and then not acting upon it.
you cannot become a robot. maybe if i lobotomise you somehow lol.
no state is permanent. no state of any kind at any level, in this universe, is permanent. everything changes with time. whether it be physical or emotional... at the personal level, galactic, or cosmic.
if you see a hot chick, and your first instinct is to grab her tits... you don't do it. after not acting upon it long enough, it becomes normal. you still have the urge, but you don't do it.
it's like that, for everything.
whenever you get that feeling of insecurity or whatever, some egotistical feeling... just realise it, and back off. self control. you can never erase your ability to perceive your own ego... i don't know what kind of human you'd be if you could do that.
it's like a bad habit, like biting your nails. just be aware, and when you catch yourself doing it, stop. repeat, practice, with enough willpower and effort, you'll conquer it. you just have to want it.
the fact that you realise how the mind is almost split into two beings constantly fighting each other is already a huge step. most people don't really understand ego past the text book definition. they call themselves non egotistical, but in fact they are very egotistical, still judging things with morals and values based on how they feel or whatever. Just always step back and view it from 3rd perspective. unemotional. usually uncaring.
i mean, one cannot really care for that much, if they have no ego
if one truly had no ego, i think they'd just sit there observing, like a rock, and wither and die... and they wouldn't care, or feel anything. It would just be... Pure observance.
and remember:
"we do not see things as they are, we see things as we are."