A seeker inquired,
I wish to ask about istighatha min al qubur
By this I don’t mean istighatha of physically asking the wali for a son or rain etc. These things are clearly shirk.
But I am asking about istighatha where the mureed gets spiritual help and sustenance and learns the daqaiq of tasawuf from the sahib-e-qabr.
This would seem to be mentioned in al muhannad by shaykh khalil ahmad saharapuri (ra) in Al Muhannad.
There is detail in this issue.
Only a very advanced, that is sahib e nisbet, mureed can benefit from a passed away sahib e nisbet Shaikh. So the lay people like us have nothing in it.
Also, there is no teaching/learning/instruction in this form of benefit. You need a living Shaikh for that,
The benefit is of faiz e nisbet/increase in relationship to Allah. Also, these are from zauqi umoor. That is something to be tasted/experienced. They are neither propagated or preached. They are to be experienced.