To see spirits for 3 days, take 5 green candles and light them. Next, take five petals from a red rose and burn those. After that, take a knife, prick your thumb and let the blood drip on the candles without dousing the flames and chant, "God of my world and the next lend me your sight, give the power to see things that can give people fright, too long they've been trapped in the dark but now let them in the light". Finally, kill the flames with the juice of a lemon.