Not sure I understood your question, can you rephrase it?
When Paul says we were dead in tresspass and sin how were we dead?
What were we seperated from? Death means seperation so what were we seperated from?
We are told what we were seperated in we were dead in tresspasses and sins, if that be true then that means we were seperated from define what we were seprated from?
If we were quickened how were we quickened? Ephesians 2: 1 "And you hath he quickened, who were dead in trespasses and sins;"
So define two things here:
1. How we were dead - what we were seperated from
Here is my definition, this death is sepration of the human spirit from God in time. Now you give your deifinition.
2. We were made alive (quickened) what was quickened?
Romans 7: 5 For when we were in the flesh, the motions of sins, which were by the law, did work in our members to bring forth fruit unto death.
Paul is saying we were walking in the domination of sin as unbelievers (i.e. by our old nature) the law showed to us the sin and our death define this death)
6But now we are delivered from the law, that being dead wherein we were held; that we should serve in newness of spirit, and not in the oldness of the letter.
We have been deliverd from sin which the law revealed and we should serve in newness of spirit, spiritual life. So that in Ephesians 2:1 we were quickened made alive spiritually is how I define it. Spiritually alive.
Now you define it?