What does 'starve the ego feed the soul mean' ?

I've heard it one day and I was wondering... Why I wanted to know it? 

If you look for explanation you can see that all results show a song by Glitch Mob.

Well what I found out is that It's a contradiction. The ego is the "I" that feeds the soul, that's how (in Jungian Psychology at least) it works. The ego would also be the "I" that does the starving (being the contradiction).

Many people are pretty obsessed with how they appear to everyone else. We have to be wearing the right kind of clothes, and look a certain way, and have a job that pays well, a nice house, car, spouse, kids by a certain age, we spend ages on Facebook, making our lives appear as cool as possible. We do all this to feed our ego's, but by doing it we starve our souls. Our soul is who we really are, and what we really want. We don't spend as much time trying to figure out who we really are and taking care of ourselves before worrying about other people and what they think. We are terrified of standing out, and being judged as weird. So if we forget about everyone else, the external, we starve our ego's but we nourish our soul, which is our inner self. 

For me it's the high time to start think what I really want, it's time to nourish my soul. Why now? Someone posted this phrase on facebook some time ago. This person caused that I starved my soul actually, starved so much that I really need to nourish it. I must restore my self-confidence and I don't find it easy. Happily I'm far away from home, from Poland. I study in other country and feel like must start another good chapter in my life. Better than previous one. I must also remember that from every bad experience I can learn something new.

What I've learnt is that I must be self-confident, be strong, remeber that there is so many things to experience... I'm somewhere in Europe and have a chance to start new life. I'm not going to give up or change my plans. Someone hurt me and caused that I hurt my soul. But it's time to open a new chapter.