“Phra Naret’s themes are water, wishes, abundance, wealth, prosperity, beauty and luck. Her symbols are candles, boats and water. In Thailand (formerly Siam), Phra Naret is the Goddess of good fortune, prosperity and beauty. Having been born of water, She flows into today’s festivities, Loi Krathong, with fertility, abundance and wealth.
The charming festival of Loi Krathong includes the launching of small boats filled with candles, incense, coins and gardenias on a nearby river. According to tradition, should the candle stay lit until it flows out of sight, the launcher’s wish will come true. You can re-create this by using a stream of hose water, a raft of popsicle sticks or plywood, and whatever tokens you want to give to Phra Naret to generate Her luck in manifesting your wish. Just make sure you choose biodegradable items, since you need to let the raft flow out of your site so the magic can release itself. Anyone finding the wish boat will also be blessed with a wish and a little of Phra Naret’s prosperity.
Drink plenty of fresh water to internalize Phra Naret’s positive attributes today, and wash your floors with plain water so that Her abundance and fertility will be absorbed into every part of your home. If you have plants, remember to give them a little water today too, so they can grow with this Goddess’s profusion.”
(Patricia Telesco, “365 Goddess: a daily guide to the magic and inspiration of the goddess”.)
According to mythologydictionary.com, Phra Naret is the name for Lakshmi in Thailand.  All I could really find on the name Phra Naret was that She is one of the 345 listed agricultural and fertility Goddesses of Southeast Asia (Tho, p. 19 – 20).
Mythologydictionary.com, “Thai Lore, Gods, Demigods, Heroes, Symbols, and Other Famous Mythological Characters: Phra Naret“.
Tho, Nguyen Ngoc. Goddess Beliefs in the Chinese Lingnan Area.
Graham, Walter Armstrong. Siam: a handbook of practical, commercial and political information.
Gray, Louis Herbert. The Mythology of All Races, Vol. 12.