“Do not lay up for yourselves treasures on earth, where moth and rust  destroy and where thieves break in and steal, 20 but lay up for  yourselves treasures in heaven, where neither moth nor rust destroys and  where thieves do not break in and steal. 21 For where your treasure is,  there your heart will be also.”

Jesus isn’t just talking about material things, or he wouldn’t have said “there your heart will be also.”