Buddha says: Meditation is the only wealth, because you can take it beyond death. In fact he says this is the criterion: if something can be taken beyond death it is true wealth. If it cannot be taken beyond death, it is untrue wealth, it is a deception. And not only that you are deceiving others, you are deceiving yourself. And when death will knock at your door, you will weep, you will cry, but then nothing can be done.