Rudra is the manifestation of S'iva in our universe. Rudra is the intimate other side of Vishnu, like the S'iva/Krishna union.
There are a number of hymns in the Rik Ved about Rudra, and three of them are solely dedicated to him. Rudra is the supreme Warrior, the divine Fighter, the God of Power. He is terrible according to the human view: he is dynamic according to the divine view. In the popular understanding of Indian mythology, Rudra is the Storm-God or Thunder-God. It is said that he creates thunder with his arm and uses lightening bolts from the sky. He is also said to use the bow and arrow. Rudra is closely associated with the Maruts, the Divine Sons, who are also connected with the natural forces and the heavens. In Indian mythology, Rudra wears a golden necklace and is adorned with costly celestial garments. His lips are said to be beautiful, and his hair is always braided.
Human desire makes us feel that ignorance is our lot. Divine aspiration makes us feel that God-realisation is our birthright. Human ignorance is within us and without. With his dynamic, divine energy it is Rudra who frees us from this ignorance and inwardly compels us to march towards the Light, the Light of the Beyond. He does this more powerfully, perhaps, than any of the other gods. He can work in and through us most convincingly when we bring our own heart-elevating and soul-illumining emotions to the fore. Rudra marshals the human race to march toward its divine perfection. It is Rudra's divine necessity that impels him to do this work.
The world is for the brave; and those who are brave are already chosen by the divine aspect of Rudra. Spirituality in its purest sense is the acceptance of life. If we want to transform the world, first we have to accept it. When we face the world, what we see initially is imperfection, and our immediate reaction is a feeling of despondency. But the real divine warrior feels that he is indomitable-a perfect match for the darkness of the world-for he knows that Rudra is constantly inspiring him and aspiring in him and for him.
Rudra does not want even an iota of an undivine force to remain within us. Compassion he has in boundless measure, but his compassion he uses only in the form of Light. Where there is Light, Compassion reigns. Again, where there is Compassion, there also is Light. Rudra's Compassion is the Compassion of oneness. Rudra feels that if he is perfect, then his human children must also become perfect. He feels that we can all be perfect, for in our soul's nature we are already perfect.
We are all seekers of the infinite Truth. We have to adore Rudra, the indomitable, not out of teeming fear or excruciating pain, but out of love, out of selfless devotion and surrender. Rudra wants to establish the Kingdom of Truth and Perfection here on earth. He strives to establish the Kingdom of Truth in a world of falsehood, the Kingdom of Perfection in a world of imperfection.