There are Tantrics who deliberately seek to do more active forms of renunciation, so transgression of social norms and breaking of taboo, and breaking of social taboos especially, is a form of renunciation.
It is the nature of the Kali Yuga that most human beings are now held back from spiritual liberation due to the gravity of inertia, apathy and laziness, (known in Sankrit as the quality of tapas) that overwhelms this age. Despite this seemingly gloomy prognosis, there is a way out of this predicament for those with the will and stamina to awaken from the rampant lethargy, within and outside of themselves, to take action.
Sex is like an atom bomb. A potent weapon which fascinates and frightens. We're afraid to let it loose, yet we all have our finger on the button.” --Zeena Schreck, Cuir Underground: Sado-Magic for Satan Interview, 1998
The material world is all feminine. The feminine engergy makes the non-manifest, manifest. So even men (are of the feminine energy). We have to relinquish our ideas of gender in the conventional sense. This has nothing to do with gender, it has to do with energy. So feminine energy is what creates and allows anything which is non-manifest, like an idea, to come into form, into being, to be born. All that we experience in the world around us, absolutely everything (is feminine energy). The only way that anything exists is through the feminine force.
Shapeshifting requires the ability to transcend your attachments, in particular your ego attachments to identity and who you are. If you can get over your attachment to labeling yourself and your cherishing of your identity, you can be virtually anybody. You can slip in and out of different shells, even different animal forms or deity forms.
Only those few who are able to surpass their fear of death completely can fully experience the highest forms of life; not the mundane life of the mortal, but the godly life of the resurrected.