Divine or infantile beatitude are two ideas which amount to the same thing:
The so-called “infantile beatitude” is the experience of the infant when ego-consciousness is just barely beginning to dawn, and the nascent ego is in communion with the archetypal world. That is what divine beatitude iscontainment and communion in the archetypal world
TOL ¶ 0Although it does have an infantile reference, it does not have an infantile meaning. It has a personal transcendent meaning. As William Wordsworth has told us long ago in his poem, the infant comes “trailing clouds of glory, from God who is his home,” expressing the fact that the nascent ego emerges out of that state of divine beatitude
TOL ¶ 0It corresponds very much to what Jung speaks of as his earliest memory, which you'll find in Memories, Dreams, Reflections:
CW5 ¶ 0Vision:
Lying in a Pram
I am lying in a pram, in the shadow of a tree. It is a fine, warm summer day, the sky blue, and golden sunlight darting through green leaves. The hood of the pram has been left up. I have just awakened to the glorious beauty of the day, and have a sense of indescribable well being. I see the sun glittering through the leaves and blossoms of the bushes. Everything is wholly wonderful, colorful, and splendid ( MDR, p. 6 )
VISION COMMENTARY
This is one version of the beatific vision. When one touches the paradise level of the psycheif it is contacted consciouslyit has a healing effect; but if one is only drawn back to it magnetically by an unconscious, regressive tendency, it has no such healing effect. Then one is only drawn back to the infantile attitude of existence. It makes all the difference in the world whether this regressive process takes place consciously rather than unconsciously
TOL ¶ 0