PLS Seminar IV 2009

So, I don't have a quote, but thinking along the lines of the principle of charity as Professor Affeldt encouraged us to do last class I'm wondering about Descartes' belief in God being based on his thought conception of God.  As I'm learning in my theology class Aquinas defines theology as faith seeking understanding.  It seems to require a great leap of faith that God exists in our understanding therefore an even more perfect God exists in reality, and I admire Descartes' trust both in his own faculties and in the possibility of a more perfect God than can exist in his own understanding.  We are also studying in my theology class how faith is rooted in experience and how one cannot assume universal experience of faith because each person's experience is different.  Learning about Descartes' experience is one way of understanding faith.  It may not be the same as my experience but it may be the same as others' and it certainly worked for him.  Is this all the validity a faith argument needs?