When God brings poverty

http://bible.us/Luke15.14.ESV
14 And when he had spent everything, a severe famine arose in that country, and he began to be in need.

When we are confident in our abilities and resources, we wrongly assess that we don't need God. And so we live our life selfishly and extravagantly - not extravagance for the glory of God but for our own desires.
This of course saddens God's heart and is a major attack against His glory - which is why we have all been created in the first place. In fact, that is the  very reason that we are given abilities and resources -to make much of Him.
An inheritance like the one the prodigal son received was intended to be invested, and yet it was squandered on self-gratification. How many times do we do the same?

It is in these times that God awakens us to our real need for Him. Without his provision, we find ourself bankrupt and impoverished. In our independence we are reduced to the position of a farm animal.
I don't believe it brings God joy to bring this poverty into our life, but He brings it all the same so that our focus shifts from us to Him and the richness of His salvation.
At the end of the day it matters very little how much is in our bank account or how much spending money we have. Instead, the real question is - are we in communion with our Father, feasting on the bounty of Jesus Christ? That is true extravagance.