Buddhist views on talking with the dead? Is it possible? In Tibetan Buddhist teaching it is stated that we will be in bardo state for 49 days before rebirth. So during this period we can still communicate with the dead?
What is the Buddhist view on this? Can the dead communicate with the living, for example via chimes (making sound notes that only the family member will know)?
Is it possible or just a joke?
In Tibetan Buddhism it's still possible, because i read their system on how to find the dead Dalai lama via a dream.
But based on my research, all experiment to communicate with the living one, which done by many famous people is failed.
For example:

Ian Stevenson promised will tell a code of the safebox to all the worker colleagues. Failed!
Houdini promise to do everything possible to communicate with his wife Bess Houdini. Also failed!
The Beatles also doing this experiment: they promise whoever die first will contact the living one. Also failed.
And many others
According to Theravada, you will be reborn immediately after your death. So if you communicate, you are communicating with the new being.