Shiva Shakti

The divine power of Shiva-Shakti corresponds to two essential aspects of the One:

the masculine and the feminine. 

In the universe, we have matter and consciousness:

Shakti and Shiva. 

SHIVA symbolises consciousness, the masculine principle.
SHAKTI symbolises the feminine principle, the activating power and energy.

When Shiva’s beloved Sati immolated herself, Shiva in grief turned inward and meditated for thousands of years. Completely absorbed in his head, he did not contribute to the cycle of change. The world was stuck. With no dissolution or end, there was no beginning.

Without Shiva bringing everything to a state of dissolution, Brahma could not create—ideas could not be born, creativity and imagination were blocked. Brahma went to the great feminine force, Shakti, for help. Shakti told Brahma she would be born in a human female form to bring Shiva back into the world

The mind-body-spirit connection:

Shiva represents thoughts that originates at sahasrara, and with thought, “we can create, destroy, learn, and grow.” Shiva is an all-pervading essence; an ultimate form of consciousness that is both the creator and destroyer.

Shakti represent willpower (इच्छाशक्ति), Knowledge Power (ज्ञानशक्ति) and Action Power (क्रियाशक्ति) which is responsible for creating a balance.

Like our ever-changing thoughts, Shiva comes in many forms. Just as our thoughts are both creative and destructive. Thoughts in different forms are single petals on the ever-blooming lotus. They help us to understand our true nature as part of a single consciousness. 

Shiva has no capability to do anything until Shakti gets united with Shiva

When we recognize (Shiva and Shakti within us) Mind-body-spirit is one.