All power, listen, all power has to be from oneness. Sadashiva explains - first a person need to start practicing the preparations, it's called charya, like you do pooja, you do yoga, you do pranayama, you apply bhasma, wear rudraksha; all this lifestyle practices. Then, you start doing kriya, turning your body and mind to higher realms - that is kriya. Then, connecting with those higher realms - that is yoga and living in that higher space itself is jnana.
This is the normal course of a spiritual seeker in regular traditional Shaivite method.