While outside early one morning, lingering under a tree, I shifted my posture deliberately to see how it affected my state of mind.
Years ago, our psychic development group explored examples from a book about how posture can change what's going on in our energy. We placed our arms and legs in specific positions at specific angles and quieted ourselves to see what might be changing.
One position in particular called to me. It was the position I naturally took when I was standing under a tree, listening to spirit. Seeing it in the book made me aware of how I tended to hold my arms. They said "37° angle with the elbow at the axis." I tested their angles and sure enough my arms were just about 37°. Oddly comfortable. But when I adjusted the angle 5° the energy changed.
The vaulted ceiling in a building of worship isn't just about architecture. The shape itself lends itself to 'upward' thought, the idea of raising our humanity to meet the divine.
Shapes can make a difference.