The paradigm shift from the theistic God to the universal God is perfectly paralleled in the Bhagavad-Gita when the personal form of God in Krishna, Arjuna's charioteer, shows Arjuna his universal form with its myriad eyes, its thousand suns, all the sages, and the holy serpents, birthless, deathless, Richis, Sidhhus, Rudras,Vasus.....
If you cut out the fear images which are tacked onto the end the "Shape of the Infinite God" fits almost perfectly the new paradigm which is everyone and everything and more.
At the end Krishna re-assumes his "mild and pleasing form" to bring peace back to Arjuna.
God can appear in any form but tends to assume the form which the experiencer will recognize as God.
In as much as the personal form of God is the Father, the universal form of God is the Father of Fathers.