Solar and lunar energies are an essential duality in Tantric science. The solar energy which is more rational and action-oriented tends to be more dominant in males. The lunar energy which is more emotional and feeling-oriented is generally more dominant in females. Some women are more solar than some men and vice versa, so everyone is free to be however they want. The true balance that we seek in yoga is between the solar and the lunar, as we are half male and half female anyhow. The complementarity of both ways of being or arguments one might say, is the truth. Alternate nostril breathing and many meditation practices related to establishing this balance.
