Brown Driver Briggs

 1. inner man, mind, will, heart, soul, understanding
  1) inner part, midst
1a1. midst (of things)
1a2. heart (of man)
1a3. soul, heart (of man)
1a4. mind, knowledge, thinking, reflection, memory
1a5. inclination, resolution, determination (of will)
1a6. conscience
1a7. heart (of moral character)
1a8. as seat of appetites
1a9. as seat of emotions and passions
1a10. as seat of courage