To see saltpeter in a dream, signifies change in your living will bring about a turn around to a sorrowful situation.
Psalm 126:1-6. O Lord, thank you for turning my sorrowful situation around.
Recite: Sayajalullahu ba ada usrin yusra 41. Inna ma al usri usra 41. Ya man baddala sayyiaati bil hasanaati 21 for 11 days with suratul inshirah 11 times.