Havans are revelations from the Higher Power to our Ancestors. In these sacred rituals Agni (Fire) is lighted in the Havan Kund (the sacrificial fire) and various energies (deities) are invoked by chanting the mantras and through various postures (mudras).
Many offerings are made to these deities during the Havan for our prayers to be answered. The people who completely believe in the ritual are immediately benefited, as grace comes to them spontaneously and instantaneously.
By doing Puja/Havan, thoughts and vibrations of spiritual forces are created around us. These spiritual forces work to eliminate the negative influences in our life and help surround us with a positive energy which can bring us peace of mind, material prosperity and enable us to more clearly touch the divine, our true nature.
Havans are performed for several purposes; to dispel the negative energies in houses; to destroy negative life patterns; to annihilate negativity, curses of previous generations and also for counter black magic effects.
Havans also bring in high energies into houses, thereby paving way for positive thoughts, actions etc. They help in re-vitalizing the three energies in our body (Vata, Pitha, kapha) and help in maintaining energy balance.
During the havans, the divine energies from the deities flow into the body of the performer and thereby cleanse them of all negative energies and destroy negative samskaras.
They also bring in positive energies which in turn affect and change the outside world.
The deities invoked during the Havans form a protective shield around the performer to safe guard them from any further evil energy.
The result of these actions is to help purify us and to enable us to imbibe more deeply the spiritual energy invoked by the havan.
Havan Pooja is done Free of cost at the temple or at the place of the devotee on his request by the temple.