Only if Shiva is united with Shakti does he have the power to act, otherwise the God is not even able to quiver.
Thus having been lauded by the creator, preserver and destroyer of the world, how can a man without virtue like myself be able to sing or to praise you?
[Shankaracharya, Saundarya Lahari 1]
I am Manifest, Unmanifest and Transcendent Divinity,
I am Brahma, Vishnu and Shiva
As well as Saraswati, Laksmi and Parvati
I am the Earth, The Sun and the Stars
And I am the also the Moon
I am all animal and birds,
And I am the outcast as well, and the thief
I am the low person of dreadful deeds,
And the great person of excellent deeds
I am Female. I am Male and I am Neuter
In the Devi's Supreme Cosmic Form,
The Satyaloka is situated on the topmost of Her head;
The Sun and Moon are her eyes;
The quarters of the sky are Her ears;
The Vedas are Her words;
The Universe is Her heart;
The Earth is Her loins;
The space between earth and sky is Her navel;
The constellations are Her Thighs;
The Maharaloka is Her neck;
The Janarloka is Her face;
Indra and the Devas of the Svarloka are her arms;
Sound is the organ of Her ears;
Fire is within her Face;
Day and Night are Her wings;
The mountains are Her bones;
The rivers are Her veins,
And the trees are the hairs of Her body.
Childhood, youth, and old age are Her finest modes;
The two twilights are Her raiment;
And the Moon is the mind of the Mother of the Universe.
[Devi Bhagavata Purana, VII.33.1-21]