Here's info on this.

Visions Beyond The Veil by H. A. Baker is a book, that documents a true account, of a series of visions that some Chinese orphan children had when revival broke out in their midst. The children saw angels, demons, heaven, hell, Jesus, etc. They related their experiences to missionary H. A. Baker and his wife Josephine, who oversaw the orphanage where the children lived. The visions changed the children's lives and behaviors. The children would or lay sit still for hours as if in a trance, then they would reported their visions to the Bakers, who faithfully documented them. These visions make amazing and inspiring reading.

What I really found fascinating, is the children, would have visions about something, they knew nothing about, but which was then later proven to be true. Showing they didn't merely have hallucinations. If I recall correctly, all the children converted to Christianity, after the experiences.

Here's the entire book for free:

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