Śivaḥ śaktyā yukto yadi bhavati śaktaḥ prabhavitum |
Na ced evam devo na khalu kuśalaḥ spanditum api || 1 || 
- Saundaryalahirī 

Unite with Śakti, Śiva is endowed with the power to create the universe Otherwise, He is incapable even of movement