Wisdom and compassion are emptiness and form; they're not separate. That is the goal of tantra – the unification of emptiness and form. If the practice of tantra is to unify these, then ambivalence will naturally be a powerful aspect of the path. As long as there is the appearance of duality, there is the energy of ambivalence: she loves me, she loves me not; she loves me she loves me not … Will practice bring me realisation or merely painful knees and ankles? If the dance of emptiness and form has been mere stagnation – there is no electricity of ambivalence!
Wisdom and compassion are live electric terminals for tantrikas. You grab them and experience the surge of existence/non-existence as it lights you up like the sun! Then … maybe you radiate compassion from the empty wisdom space of your being.
p40-41, Wearing the Body of Visions, Ngakpa Chögyam, Aro Books, 1995, ISBN 1-898185-03-4