Does Meditation Change the Brain?

The link for this article by Ramesam Vemuri-
http://advaita-academy.org/blogs/ramesam/Does-Meditation-Change-The-Brain.ashx

I liked this--

Sankara gives paramount importance to meditation in Vivekachudamani. He says, “As gold purified in the furnace, rids itself of dross and reaches the quality of its own self, so the mind ridding itself of the dross of substance and darkness, through meditation, enters into reality.”