As she explains in her short introduction to �Fire Dynamic� (or Fire Vinyasa, as it�s titled on the Main Menu), the purpose here is create heat in the body and to release toxins by incorporating twisting postures. For all practices on this DVD, Lee teaches via voiceover. Fire is set outdoors at night, with several large flaming tubs placed around the set, casting smoke throughout the video. Lee�s main prop is a mat (with the orientation frequently changing from parallel to the viewer to perpendicular due to shifting camera views), although occasionally an inset is shown with modification options, and she also uses a blanket for shoulderstand. Lee sometimes notes the names of the postures in English, sometimes in Sanskrit, sometimes not at all.