Shiva is referred to as 'the good
              one' or the 'auspicious one'. Shiva - Rudra is considered to be the
              destroyer of evil and sorrow. Shiva - Shankara is the doer of good. Shiva
              is 'tri netra' or three eyed, and is 'neela kantha' -  blue necked (having consumed
              poison to save the world from destruction. Shiva - Nataraja is the Divine
              Cosmic Dancer. Shiva - Ardhanareeswara is both man and woman. 
              He is both static and dynamic and is both creator and
              destroyer. He is the oldest and the youngest, he is the eternal youth as well as the
              infant. He is the source of fertility in all living beings. He has gentle as well as
              fierce forms. Shiva is the greatest of renouncers as well as the ideal lover. He destroyes
              evil and protects good. He bestows prosperity on worshipers although he is austere. He is
              omnipresent and resides in everyone as pure consciousness. 
              Shiva is inseparable from Shakti -
              Parvati the daughter of Himavaan - Haimavati. There is no Shiva without Shakti and no
              Shakti without Shiva, the two are one - or the absolute state of being - consciousness and
              bliss. 
              The five mantras that
              constitute Shiva's body are Sadyojaata, Vaamadeva, Aghora, Tatpurusha and Eesaana.
              Eesaana is Shiva not visible to the human eye, Sadyojaata
              is Shiva realized in his basic reality (as in the element earth, in the sense of smell, in
              the power of procreation and in the mind). The Vishnudharmottara Purana
              of the 6th century CE assigns a face and an element  to each of the above mantras. (Sadyojaata
              - earth, Vaamadeva - water, Aghora - fire, Tatpurusha
              - air and Eesaana - space). 
              The names of the deified faces with their elements are
              Mahadeva (earth), Bhairava (fire), Nandi
              (air), Uma (water) and Sadasiva (space).  Panchamukha
              lingams have been seen from the 2nd century onwards. The Trimurthi Sadasiva
              image of Shiva in the Elephanta Caves near
              Mumbai is a portrayal in stone, of the five faces of Shiva. The fourth and the fifth heads
              are not seen in this image here. 
              The works of sages Vyasa, Vasishta, Patanjali, the
              poet Kalidasa, the tamil saint poets Nayanmars - Appar, Sundarar, Sambandar, the 
              poet Manikkavachakar, the mystic tamil siddhas, tantric philosophers, the spiritual leader
              Adi Sankaracharya and others such as Basavanna and Appayya Deekshitar speak of the
              attributes of Shiva.