Shiva Sakthi

A forward

Shakti is sagun and Shiva is nirgun because Shiva's gunas were stripped off to let Shakti emerge. The androgynous energy split into two. Shiva became the non-reactive (potential) half while Shakti became the reactive (kinetic) half. This is seen in depiction of Mahakali wherein Shiva is immobile, lying down and Shakti is mobile, in charge. This is shown by her stepping on his chest. It is not an expression of shame but a representation of Prakriti's wild, untameable nature. Since, Shiva and Shakti are two halves of the same Universal energy flux, it is the manifested half of Shiva (Shakti) that steps on the unmanifested half (Shiva).  The Shivlinga is a symbol of firmness, of immobility while Shakti demonstrates mobility. The minute we think we have perceived or understood Shiva, we have converted Shiva into Shakti. Shiva can never be perceived. It is beyond the senses. All that we can capture in our senses is Shakti - Maya. The minute we give a form to the formless, it becomes Shakti and ceases to be Shiva. So, we meet Shakti and not Shiva. Only upon death of the senses can Shiva be unveiled.  Thus, it is said that Shakti is the dynamic Shiva and Shiva is the static Shakti. It is the same energy that is exhibited differently. Therefore, Shiva and Shakti are worshipped as a pair. While he is Shunya, she is everything but Shunya and together they make one complete unit. This is a subtle reminder to the Purush that his way is only through Prakriti.