the gandharva kali was in love with varuthini and had been rejected by her in the past. he saw how she hungered for the brahmin, so he took on the appearance of pravara and came before the courtesan. he led her into the bedchamber and told her to close her eyes during their sex ["sambhoga"]. as they made love, varuthini noticed that his body became flaming hot and believed it was because his brahmin spirit was infused with the sacrificial fire. after climax, kali, still-as-pravara, left the apsara and returned to his abode. varuthini soon became pregnant and nine months later gave birth to a human child that not only looked like the brahmin but possessed his soul as well. the authors of the book "science in culture" comment this was an example of the sanskrit phrase "from his semen and from her thinking," meaning the child was indeed pravara's child because she believed it was his.