How can we explain this phenomena from his bazi chart?
1. The hai is considered the heaven's gate and when it is clashed by the si, the gate to the other world will open. There is a double hai-si clash in his natal chart.
2. The indirect resource stars also represent the sixth sense. He has a very strong sixth sense since the ji-chou in the hour pillar are his indirect resource stars. Now his sixth sense are strongly heightened since he is in the ji-chou LP and also this year is the ji-chou year. He is very sensitive now since there is a triple ji-chou fu-yin.
3. Since the DM is a weak one, the negative gui gives the image of the "vapour figure".
Please do not be mistaken that anyone with the hai-si clash will be able to see a ghost.