A Shivling contains two types of pure particles (pavitrakas) from both – the ahat sound (that produced by the falling of water onto its surface) and the anahat (subtle) sound. To absorb the three pure particles, that is the two pure particles as well as those in the bel leaves which are offered upon the pindi, trifoliate bel is offered to Lord Shiva. Tender bel leaves can unite ahat (language of sound) and anahat (language of light) sounds. The leaves should be offered with their stalks facing oneself and the leaf should be placed upside down on the pindi. The motive behind this is to attract the combined energy of the three leaves towards oneself. The combined energy of these three pure particles facilitates the reduction of the three components (trigunas). Bel is not offered upon the base of Shivling, but to the eye of Shiva on it. The kayakalpa from the Ayurveda discusses the importance of partaking juice of three leaves. Ayurveda refers to the fruit of the bel as the fruit of nectar (amrutphal). There is no disease which cannot be cured with bel. If some medicine is not available then bel should be used. However it is contraindicated in pregnancy as it can lead to fetal death.
Knowing Mahadev 