Sprits are physical though, they exist. I have seen them, felt them and heard them. they are just refined farther than what we can possibly see with our unrefined vision. we are imperfect and cannot see them without God's help.
the smallest known particles of matter are quarks and leptons. when they appear and we can detect them, they decay into smaller particles which we do not have the equipment to detect. there is always something more refined than what we can see, Matter is eternal, it is impossible to destory matter, it is only possible to change it's state.
There's a fundamental disagreement here with regard to what it is that constitutes "spirit." Even if the spiritual is "physical" in some way, that "spiritual" physicality that we cannot understand does not translate into a physical, human form that we
do know and understand. It's something completely foreign to the human experience.
You're hedging your bets. What you're saying is that God has a physical body, and that that body is in a spiritual form. Yet, you also say that God was "just like us" at some point in time. There is nothing in either the Biblical record, or the theological record of God's people that support this theory. Your statement completely undermines the need for the Incarnation of Jesus, according to the most ancient and orthodox understanding of the Incarnation.
The Bible states that God is Spirit -- not that God is Body. That fundamental understanding of difference between the human and the Divine is extant from Genesis 1. All attempts of human to blur the distinction are thwarted. In orthodox Christian understanding, it is God's Incarnation -- becoming fully human -- that reconciles us, not our becoming "like God."