The spirit by whose influence a man smells sweet fragrance and becomes cognisant of various tastes and thus turns mad is called the Rakshasha spirit.
उपाघ्राति च यो गन्धान् रसांश्चापि पृथग्विधान्। उन्माद्यति स तु क्षिप्रं स ज्ञेयो राक्षसो ग्रहः॥