Prepare a pot of tea (size depending upon the size of the family, as you will see) made from valerian root herb (Valeriana officinalis).
The cut and sifted form of the herb is most useful, since it can be easily strained through a regular tea strainer. Dried herbs can be used, but fresh herbs are better. Use about an ounce of herb to a pint of water. The herb should be broken up in a pestle and mortar to release the active principles. Since valerian is one of the deeper essences, you may need to simmer the tea for about an hour, after which time about half the water will have evaporated. Incidentally, do not use an aluminum vessel. Use glass (Pyres), earthenware, enamel, or stainless steel.
When ready, pour into a teapot and top up with hot water. Then with everyone sitting in a circle, the mother should pour a cup of tea for each family member; but make sure that at least half the tea is left in the pot (this is where the size of the pot comes in). All drink their tea. Then take what remains in the teapot and sprinkle a little of the tea in every corner of every room in the house; in the corners of the rooms and alcoves, and in the corners of all the larger closets (such as clothes closets and pantries).
When this has been done, all the family members should stand in the kitchen with hands joined, and the mother, or eldest female, should say:
Peace be unto this house
And peace be with all who dwell herein.
Let harmony be forever here,
And let love abound.