carlos says:

"he described will as a force which was the true link between men and the world. he was very careful to establish that the world was whatever we perceive, in any manner we may choose to perceive. he maintained that 'perceiving the world' entails a process of apprehending whatever presents itself to us. this particular 'perceiving' is done with our senses and with our will. i asked him if will was a sixth sense. he said it was rather a relation between ourselves and the perceived world."