All humans on Earth are currently in the physical 3rd Density, regardless of how spiritually mature they are. This means that there are humans operating at the level of 4th Density Service-to-Self or Service-to- Others, humans who will graduate to a full 4th Density spiritual existence after the Transformation, who are being kept at the 3rd Density physical plane. All humans, of whatever spiritual level attained, must move together to the 4th Density physical plane when the Earth has reached approximately 89% operating in the Service-to-Others orientation - the Earth's designated future orientation. Even those humans who are spiritually in the 3rd Density, not having completed their orientation lesson, will move to the 4th Density physical plane at that time. This mixing of the spiritual and physical densities is a Transformation necessity. The alternative would be for 4th Density spiritual humans to suddenly disappear one day, having moved to another dimension, so to speak. This would not only alarm other 3rd Density humans in the vicinity, but would not be the choice of those in 4th Density Service-to-Others, who consider their responsibilities. They would not wish to leave behind those they feel responsible for. Thus, all move together.