Cloud
An elder Zen master is sometimes given the title of Roshi which literally means Laozi or Lao Tzu.
I think whatever happens to consciousness when you die is probably so alien to human existence that there's probably no real way to fully explain it in any human language and with any human concepts.The dalai lama believes they are psychological. My understanding of his view is that everyone has an aspect of themselves which is hungry ghost which manifests to lesser and greater degrees. I have times when I think I am like a hungry ghost, such as when I am having a sense craving. Trying to get the right thing, try a glass of coke, and then a walk, and then a snack yet not really enjoying anything. That sounds like a hungry ghost.The common folk in Tibet interpret the ghost realms literally. I've seen this concept presented both ways. But there are other types of spirits in Tibetan belief, too--nature spirits, plus those Himalayan demons that were tamed and became dharma protectors.
Taiwanese buddhists belief in ghosts and spirits.
Yishai