Maha Rudra is a very important form of worship of Lord Siva, the very source of cosmic energy for the entire creation. His Divine form encompasses and extends far beyond all known and unknown galaxies and universes. Lord Siva is omnipotent, omniscient and omnipresent. He is the conqueror of Death and an embodiment of infinite mercy, compassion and love. We who owe our existence to the Divinity are duty bound to think of Him constantly and worship Him gratefully for the welfare of all mankind.
INFORMATION ABOUT RUDRA
Rudra is evolved from the combination of Rud (in Sanskrit means Sin) and Dravayati (means washed away). Thus the process involved or to say the Shanti performed to wash away our sins is called Rudra.
The underlying principle is that we, human beings, knowingly or unknowingly commit sin in our day-to-day life. There are various types of sin we commit, for say, verbally, (abusing or being harsh on someone), through our thoughts (ill feeling towards someone) and physically (forcefully). We need to apologise towards this and as such Rudra is performed. There are several types of Rudra of which Rudraikadashani (Laghurudra swahaakaara yagna)/ Maharudra swaahaakaar yagna) are generally performed to purify ourselves by apologizing for our sins.