Inner Sanctum

Tears inner sanctum rested peacefully underground, it's silence was absolute and echo less.  The air was clean with the hint of incense. It was a circular room supported by a series of large marble columns which were adorned with candles.  Shadows danced throughout the chamber taking on all shapes and sizes.  At first the scene was jarring, sending the most calm of minds into a paranoid spiral, but once acclimated a serenity took hold.  Carved on the floor was a series of ornate runes, each rested at the end of a large five pointed star etched at the center of the chamber.  Tear was the first to break the silence.
     "When you enter the astral plane it is important that you not become involved in anything that is happening around you."  He paused to allow this idea to sink in.  "Your senses will be heightened to a degree of which you are not familiar."
     Shadows raced across his face as the group listened intently.  The drow hung behind the group between two of the columns.
     "You will travel by thinking, there will not be an up or a down."  His eyes fixed on Groth's puzzled look.  "No force such as gravity exists on the plane, if you are not thinking of a direction, you will surely fall.  The plane is not aligned, it is timeless and infinite.  If you get lost, you will be lost forever."
     As the group soaked in the scope of the undertaking, Tear educated them of the status of the physical form.  Normally creatures visit the plane without their physical form, carrying a silver thread that serves as their link to the natural world.  If that link is separated the physical being will not survive. 
     Moving from column to column Tear traces the etched runes with his fingers.  As he steps away they begin to glow, faint at first and then brighter with each successive rune.  A hum begins to resonate within the chamber.  It builds to a crescendo as the final runes are activated.  Victran steps forward to join the group in the center.
     The hum resonates deeper and without warning the floor begins to crumble away, falling into a void below.  The chamber begins to shift away leaving the same shapeless void in all directions.  Chests tighten as stomachs lurch upward.  The sensation of falling inserts itself, however they were not travelling downward.

They had entered the Astral Plane