Due to the strong relation with everything water, nāgas in Thai belief also plays a role in rain control. The "Nak hai nam" (; lit. nāga granting water) concept is used for annual rainfall prediction. It is still practiced nowadays, most notably during the Royal Ploughing Ceremony. The oracle ranges from "1 nak hai nam" (1 naga granted water); meaning the abundant rainfall should be observed that year, to maximum "7 nak hai nam" (7 nagas granted water); meaning there might not be adequate rainfall that year.