Tantra and Yoga heavily rely on practice with Fire to convey message to the deities as well as for personal growth in all facets of life. We have always seen Diyas, Deepams alias Lamps in almost all the temples of India. It is one of the most easily accessible items one can do at home to prevent misfortunes and promote their all round well being and prosperity. No long lectures about how one should learn to spread light like deepam.
The cultural rule is to always light a deepak during pooja. Why? Lighting a deepam increases sattvic vibrations in the house and the room to the least. The deepam can be lit of various substances but Ghee and Oil is predominant. Lighting a lamp of Ghee is the best possible option but if one wants lighting Mahua oil and Sesame oil and Mustard oil also has immense benefits.
Below is the list of Deities who are easily appeased by specific oils, even though other oils work none the less. Ghee : Gram devta,Trimurti,Lakshmi,Ganesha , Kubera , Kuldevta, Kuldevi.Til : Narayana, Saturn and also to remove hurdles in life , keeping away poisonous snakes. Mustard: Saturn and also to ward of diseases Jasmine: For Maha Lakshmi and Kuber Coconut Oil: Ganesha.
