There are two primary reasons for the manifestation of reality. In different traditions they are called differently: Shiva and Shakti, yin and yang, force and intention, "male" and "female". Shakti is the primordial force manifested in the Absolute, whole existing reality, all energies and whole matter. The intention, the pure light of the Consciousness, is activated only in the presence of Shakti.
Shakti is manifested in the womb in the woman's body and men can perceive it in the same area as their body. It’s perceived as a dark whirlwind of dense energies moving in the womb area. The vibration that emerges from the interplay of the force and the intention animates our daily reality.