The ego is an important topic for discussion in tantra. Shiva is essentially a supreme egoity; the self of all selves. The purusha is ones individual soul; this is certainly a big part of who we are. And then we have the ahamkara which is who we think we are. These are like three levels of ego: The ahamkara is the ego which is cut off from inner truths; it only sees what is on the surface. The purusha is that ego which understands our connection to the universal. People who strongly identify with their individual soul approach life as an instrument of the divine. This is the beginning of saintliness. But only one who has fully realized their divine nature as all of this whole universe will experience Shiva’s true freedom (svatantriya).