Bhaba can be described as feeling or mood. Theoretically, bhaba is the emotive states expressed in a performance towards the evocation of rasa. They are classified into sthayin, sancarin or vyabhicarin, and sattvika. To know more read:
http://www.indianetzone.com/28/bhaba_feeling.htm
http://www.indianetzone.com/28/bhaba_feeling.htm
