When we think of the physical realm, we think of the real realm. We think of reality. We think physicality is reality. But we really need to switch that, because physicality is not reality. Spirituality is reality. Physicality is nothing more than the manifestation of reality.
We are not physical creatures having a spiritual experience. We are spiritual creatures having a physical experience. The reason that's important is that we need to wake up every day with the awareness that our body may be in a comfortable home, driving a comfortable car to a comfortable job, but our spirit is in a war zone.
We have to be vigilant. We have to be aware. We have to realize that there's a battle going on, and it is not a small battle. The scripture says the enemy, the thief, comes to steal, kill, or destroy.