Many mistake the practice of Kundalini for some type of sexual practice. This can be because of the energy that is produced from the groin area upwards. Also, the male (Shiva) energy and feminine (Shakti) energy are designed to form an union. This is misinterpreted as sexual union. However, the real nature of Kundalini is to open energy channels and reconnect with universal energy, not to swell on one aspect of union.