Siva-Rudra is the Destroyer, as Vishnu is the preserver; and both are the regenerators of spiritual as well as of physical nature. To live as a plant, the seed must die. To live as a conscious entity in the Eternity, the passions and senses of man must first DIE before his body does. “To live is to die and to die is to live,” has been too little understood in the West. Siva, the destroyer,is the creator and the Saviour of Spiritual man, as he is the good gardener of nature. He weeds out the plants, human and cosmic, and kills the passions of the physical, to call to life the perceptions of the spiritual, man.
— H.P.B., The Secret Doctrine, Volume 1, page 459, footnote.