I  Had  This   Idea   That   You   Could 
  Construct Reality checks (As For Lucid  
 Dreaming, Where You'D  Learn This  Habit 
 Of Trying To  Sneakily  Break The  Rules 
 Of   Causality  Or   Physics,  Such   As 
 Flipping A Light  Switch To  See  If  It 
 Actually  Turns   Off  The  Lights,   Or 
 Trying  To  Get   Your  Hands  To  Phase 
 Together.  The Thought Being That If Any 
 Of The  "Checks"  Actually Worked, You'D 
 Know  You  Were   Dreaming)  For  Datura 
 I  Thought, You  Could Get In The  Habit 
 Of Throwing Things On The  Ground,  Like 
    Pens. Meant To Portray Cigarettes,    
 Because Everyone  Who Does Datura Smokes 
 Cigarettes.  (They  In  Fact Aren'T, And 
 So   Sooner  Or  Later  The   Cigarettes 
 Disappear, And They  Search The  Ground, 
 But  Nothing'S There.) Throwing  Pens On 
 The  Ground  And  Picking Them Back  Up. 
 And  Be Really Concerned If They Weren'T 
               To Be There.               
 This  Is  Probably  Not  How  Deliriants 
 Work.   But   I    Had    The   Thought.