Shvetark ganapati is one of the purest and rarest sacred item on this earth. Shvetark ganapati is obtained from the root of a shrub, that takes the form of lord ganesha. In sanskrit it is called ark and in hindi known as aak. In our shastra, it is laid down that in any house where white (shvetark) ganapati is available, the house remains free from all evils and the possessors are blessed with immense wealth. This is used for puja, when onces this ganapati is awakened, nothing becomes impossible for the sadhak.