Do not lay up yourselves treasures on earth, where moth and rust destroy and where thieves break in and steal; but lay up for yourselves treasures in heaven, where neither moth nor rust destroys and where thieves do not break in and steal. For where your treasure is, there your heart will be also.
– Matthew 19 – 21
In my view this is to say that what we consider as treasure be it collections of earthly desires i.e. money, movies, etc. to be treasures of earth, and those things will tie us down to earth. If we tie ourselves down to those earthly treasures, we will want to protect those treasures and thusly our security is bound to those treasures.
If our treasure is a collection of knowledge, faith, wisdom, friendships, love etc. then our treasure is a heaven bound treasure.