The meaning of Daricha's 'window'

When the Taliban banned girls from attending school beyond Grade 6, Hazrat Wahriz knew what was coming and quietly began preparing. A former Afghan diplomat and educator now living in Canada, Wahriz helped launch Daricha, a network of underground schools run from homes and supported by local communities across Afghanistan. In this conversation, he talks about teaching under constant risk, why real change has to come from within a society, and what keeps him hopeful  even as he knows he may never see the full results of his work.