psyche

noun

1. 1

   (Greek mythology) a beautiful princess loved by Cupid who visited her at night and told her she must not try to see him; became the personification of the soul

   his mind wandered

   I couldn't get his words out of my head

2. 2

   that which is responsible for one's thoughts and feelings; the seat of the faculty of reason

   his mind wandered

   I couldn't get his words out of my head

3. 3

   the immaterial part of a person; the actuating cause of an individual life