reify -- Jack

re·i·fy (r-f, r-) tr.v. re·i·fied, re·i·fy·ing, re·i·fies To regard or treat (an abstraction) as if it had concrete or material existence. [Latin rs, r-, thing; see r- in Indo-European roots + -fy.] rei·fi·cation (-f-kshn) n. rei·fier n.

The American Heritage® Dictionary of the English Language, Fourth Edition copyright ©2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.

When Jack was young, he reified God in the game of I spy: I spy something invisible; then again, for Jack perhaps God was not an abstraction.