[Tina]

The idea of infinite universe is one that appeals to me! Every direction and everywhere.???

Difficult to conceive I know but possible. I base this on the notion that matter is a constant - nothing being added or subtracted over time. Space has proven to be infintesibly more and more microscopic. We can't magnify enough yet but you imagine to potential for infinity there.

The re-arrangement of matter is what brings the illusion of 'coming into existance' but there is really nothing new just re-arranged or re-distributed. This universe does not require a first cause. It just is???

The alternative is that something can come from nothing which is impossible for me to conceive.
This does not really address shape - but what shape is infinity.