This sounds like a riddle, but it is the pure, unadulterated science of Lal Kitab.
The 8th house is the house of the underground, hidden wealth, and sudden transformations. Mercury represents children, intellect, speech, and playfulness. When Mercury sits in the 8th house, it is sitting in the dark. If it turns negative, it can cause hidden nervous system issues or sudden financial losses.
But Lal Kitab gives us a physical, real-world remedy to hack this energy.
The Toy Remedy: Mercury is the eternal child of the zodiac. If you have Mercury in the 8th house, the universe demands that the energy of "play" and "childhood" be present in your hidden, private space (your home). If you keep toys in your house—even if you don't have children—you are physically manifesting positive Mercury energy. By doing this, the 8th house stops giving sudden losses and instead unlocks "Bhare Ghade" (pots full of hidden wealth).
You do not need to wear an expensive Emerald (Panna) to fix your Mercury. You just need to understand the cosmic signs around you.
*Have you ever noticed how the objects in your house affect your mood? That is the power of Nishaniyan.*