Assuming you can believe that you are a piece of the creation of your God and that the creation is thus an extension of God, God is with you even if where you are feels like Hell. If you percieve yourself to be in Heaven, you are no more or less a piece of God in that state either...

If you believe God disconnects from you somehow and removes from you that which comes from God, how can this be? What is it that you could even be made of in that state if God is responsible for the totality of creation?

Perception of loss feels very real though, especially in psychosis. Luckily though, it isn't. God is always connected even when it is your will to believe otherwise.

Whitman nailed it...

'Nothing is ever really lost, or can be lost,
No birth, identity, form—no object of the world.
Nor life, nor force, nor any visible thing;
Appearance must not foil, nor shifted sphere confuse thy brain.
Ample are time and space—ample the fields of Nature.
The body, sluggish, aged, cold—the embers left from earlier fires,
The light in the eye grown dim, shall duly flame again;
The sun now low in the west rises for mornings and for noons continual;
To frozen clods ever the spring's invisible law returns,
With grass and flowers and summer fruits and corn.'

I am glad the psychosis abated. You're still the same piece of Source that you were yesterday and will be tomorow.