Samadhi means "fixed mind." The Vedic dictionary, the Nirukti, says, samyag adhiyate 'sminn atmatattva-yathatmyam: "When the mind is fixed for understanding the self, it is called samadhi. "Samadhi is never possible for persons interested in material sense enjoyment, nor for those who are bewildered by such temporary things. They are more or less condemned by the process of material energy.