Chassidus says:
Just being created already means disconnect.
Why?
Because to be “something” (yesh) is to feel apart from G-d. It’s built into existence. That’s why our soul yearns for connection. The deepest missing is… missing G-d.
But here’s the paradox:
If we were fully united, we’d vanish. No choice. No love. No awe.
So the “distance” isn’t punishment. It’s the space that makes closeness possible. And that longing? It’s not random.
Your longing/pain isn’t failure. It’s proof you’re alive. It’s the very fuel of connection. Because even our pain is part of the process, the way G-d’s unconditional love finds expression in a world that feels far from Him.
The “missing G-d” is what pushes us to seek Him endlessly, through study, commandments, repentance, and especially through awe and humility. 
Explore the NextSelf Blog. Start with this post explaining the world of souls. And my Youtube.
The blog lists all the difference patterns to study, understanding patterns is how one can develop 'Daas' [felt knowing].
Update: As awe, trust, and love deepen, they can allow greater openness and intimacy with the Creator. That intimacy can include sadness when you notice how much more of His goodness can be revealed.