“Boru Deak Parudjar’s themes are the harvest, blessings, longevity, courage, opportunity. Her symbols are soil and rice. The Malaysian creatrix and guardian of life, Boru Deak Parudjar grew bored of the upper realms and jumped away from them as soon as an opportunity opened up. It is this type of adventurous spirit and leap of faith that she inspires today.
In local legend, Boru Deak Parudjar’s father, Batara Guru (the creator god of Sumatra), sent a bit of soil to the water to await his daughter in the lower worlds. The earth grew to sustain the Goddess. This change in the waters made Naga (a primordial sea serpent) very angry – he wiggled until Boru Deak Parudjar’s earth began to cleave, creating mountains and valleys. Which just goes to show that stirring things up sometimes has a good outcome!
Following ancient custom, the elder of a house makes sacrifices and prays poetically for direction, the Goddess’s blessings, health and good harvest. Foods include rice dishes and rice wine. So, add any rice dish to your diet today: rice cereal for Boru Deak Parudjar’s growth-oriented energy, rice pudding for Her sweet blessings, herbed rice to spice up your life with a little adventure. When you need a bit of this Goddess’s courage, place a piece of rice in your footprint (someplace where it won’t be disturbed). As you put rice in the imprint, say,
‘Let courage guide my feet all this day.'”
(Patricia Telesco, “365 Goddess: a daily guide to the magic and inspiration of the goddess”.)
From my research, Boru Deak Parudjar didn’t jump from the upper realms because She was bored; She jumped into the primordial waters of the middle world to escape marrying Raja Odap-Odap – a lizard god to whom Her sister was betrothed to before she committed suicide after finding out that he preferred Boru Deak Parudjar to her. 
“Among the Batak of Indonesia, this creatrix, Si Boru Deak Parujar, was born in the heavens with Her sister, Sorbayati. Their parents arranged for Sorbayati, the older sister, to marry the lizard god, Raja Odap-Odap. but at a dance party he revealed that he really preferred Si Boru Deak Parajar. Humiliated, Sorbayati threw herself off heaven’s balcony; her body disintegrated into bamboo and rattan. The bereaved Sister then descended. Since She could not bring back Her sister, Si Boru Deak Parujar created the earth on the back of a snake. Only after doing so would She agree to marry the lizard god, who was transformed into a human at the wedding. From this union were born the first humans, including the first woman, Si Boru Ihat Manisia, and her twin borther, [Si Raja Ihat Manisia]. (Bonnefoy)” 
Bonnefoy, Yves. Asian Mythologies, “The Origin of Humanity and the Descent to Earth of the First Human Beings in the Myths of Indonesia“. (p.166)
Leeming, David Adams. Creation Myths of the World: An Encyclopedia, Volume 1, “Batak“. (p. 66)
Monaghan, Patricia. The Encyclopedia of Goddesses and Heroines, “Si Boru Deak Parujar” (p. 224).
Foubister, Linda. Goddess in the Grass: Serpentine Mythology and the Great Goddess, “The Cosmic Serpent“. (p. 29)
Slayford-Wei, Lian. Helium, “The History and Significance of the Goddess: Boru Deak Parudjar“.
Wikipedia, “Dewi Sri“.