Abdul Samad has given up growing poppies. The farmer from Gulmir, from a village in Pashtun Zarghon district of Herat province, has found monetary and spiritual benefits in switching to saffron.  
"I always felt sinful when I was growing poppies," he said. "The money brought me no joy, and did not allow me to change my life."  
In 2007, Afghanistan supplied more than 90% of the world's opium poppy, the raw material for heroin.  
Abdul Samad grew the illegal crop for five years until a new government program helped him make the switch to saffron, the world's most expensive spice.