Natural stones are those irregular-shaped masses found lying about the landscape. One should be sensible when planting stones in a garden. Renting some equipment is far more intelligent and cheaper than renting a hospital room. Create a garden for contemplation with a balance of well-placed stones, plants, and water. The actual physical placement of stones in a garden can have philosophical meaning.
Asian cultures place spiritual emphasis on how a stone is displayed.
The japanese believe that placing a rock against its nature invites a vengeful spirit into the garden. On the other hand, the chinese use unique stones as sculpture in the design of their gardens. Look at any beautiful garden and you will see a balance between plants, water, and stone. A stone is forever. It doesn't die or need watering.