…until, finally, Thy [God's] decree was irrevocably fixed, and Thy behest summoned this servant to depart out of Persia, accompanied by a number of frail-bodied men and children of tender age, at this time when the cold is so intense that one cannot even speak, and ice and snow so abundant that it is impossible to move.
- Baha’u’llah (Quoted by Shoghi Effendi in ‘God Passes By’)