Nothing can separate us from God, with only one exception: we can. Our little ego has that kind of power and is instrumental to separation from God. We know that nobody is born selfless. We all come with an ego. Even if we do not want to admit to it, our ego is a tricky monster.
Try as we may, our ego is always in the way.
You may ask: “Then what hope does anybody have to get connected with God?” – No reason to despair – if splitting the Trinity and sending the Son of God down to Earth is possible then nothing is impossible to God. He has means to overcome extraordinary obstacles even as big as the human ego.
God is literally everywhere, and He is constantly reaching out. It is our choice to take His hand; and when we do, our lives will transform from self-centered to God-centered. And then nothing – absolutely nothing – can separate us from Him.