Sav1orz, you're actually correct in a way.
Many who travel/journey call it "walking inbetween the worlds" or feel that it is the point between physical and spirit. Since we are not dead, we cannot truly be 100% spirit, so we exist "inbetween" when we project. Some shamans feel they must experience a near death experience to reach the spiritual world as closely as they can (without crossing over/dying) and that once this point is reached, they will always be that close. A lot of fiction abuses that idea with movies and books about people who are resussitated and then see spirits clear as day. It is an exaggeration, as most fiction is.
The astral is mostly filled with physical people's thoughtforms and spirits that have recently died or have yet to desire to "move on" to the spirit world itself (sometimes referred to as the ethereal). Astral comes from the meaning of something under the stars. Ethereal is "above" the atmosphere (literal meaning), therefore beyond our physical world.
But the ethereal isn't "death". Spirits are not "dead", the body is dead, spirits live in a different way. The Egyptians believed our life source or "breath" left us when our bodies died and continued to exist. This should show you that death is the transition from physical to spiritual. Without our souls, our bodies would die, therefore the soul is the very source of your life. The soul/spirit is not dead, it is very much living, just not in the same manner. This is the fundamentals of most pagan faiths. The cycle of life to death to life again. Death is the transition, not the end.