Definition of Treasures:
 
"Treasure, which in the Qur'anic language is called kanz (pl. kunuz) or khizanah (pl. khaza'in), is the name of the place where huge heaps of current coins and also gold, silver, jewels, or precious metals of a king or a government are stored and, in the context of modern times, the wealth of rich is also deposited there. Such a place is called the royal or government treasury or bank.
 
Contrary to this, the Divine treasure is in the form of a book, namely, the Noble Qur'an. It is also in the form of a speaking Light. The things which are in these Divine treasures are immensely more precious than heaps of gold and precious stones. It is certainly a fact and there is not the slightest doubt that the Divine treasures are there and in which there are religious and spiritual wealth or coins of their own kind. By these religious and spiritual coins are meant those realities and recognitions which are related to the obedience to and the recognition of the Imam of the time, salawatu'llahi 'alayhi, then there are the heavenly gold and silver, by which are meant knowledge and wisdom and then rubies and pearls, by which are meant the secrets of recognition of God (ma'rifat)."
 

(Source: Sweet Smelling, p. 33)