So you accept this is true and the sense of lack compels you to seek for what's missing.
You look everywhere except where you already decided you didn't find it... within.
Off you go, looking for love elsewhere, outside you, in others.
You believe others have what you lack so you want to get it from them.
You try to get it from them, and even steal it from them, because you're jealous that they have it and not you.
So you rip it from them and claim it. Except, something bugs you.
You can't shake the feeling that even though you have it, you don't have it, or enough of it.
This is because underneath, you still have in place the believe that love is not in you. It's still asserting this truth.
So now you can't even fully receive what you've taken from others because you yourself reject the idea that love is in you - you won't allow it to enter you.
This all leads up to the final confrontation which is quite interesting.
If you were to let down your guard and stop defending the belief that love is not in you, so that you can actually finally receive the love that you got from elsewhere, what would happen?
Would you finally fully 'get' what you stole? OR, would you suddenly realize that you already have what you thought you didn't have, and that you didn't even need to get it from elsewhere anyway?
Just as you think you got the grand prize, oh. .. wait.... I already had it all along, I don't need that.
You got the goods.
This is why getting stuff from the world is never deeply satisfying. It doesn't undo the block to the awareness of love's presence that is already in you. And if you were to remove that block, you wouldn't need what you got from the world. So it always falls short, and you're always left wanting, and so you keep seeking more and more and more.
Perfectionism. Addiction. Compulsion. Idol worship. Hero worship. False Gods. Special relationships.
Seek and do not find.
No need to seek any more when you've got God.