it was when my grandma is dying of cerebral haemorrhage.having the notion of that she is not to survive in a few days my mood was extremely depressed.and I had nightmares about death/funeral of her.untill one night the series of nightmare didnt stop: i was asleep sound as remembered with no bad dreams but two extremely violent, astouding bangs explosed right at my ears as if two gunshots had been just issued beside my ears! so i suddenly woke up in terror and annoyance thinking somebody was tricking me to wake me up but in utter darkness of night I could hardly get hold of switch.in a reproachful anger got ready to give the culprit a piece of mind.to my terror and suprise there was nobody in my room which was surely latched by myself from inside.so very logically the fall and crash of centain piece of furniture were scrupulously invastigated but nothing was out of place at all!! and the floor was utterly clean without any trace of crash or falling things.my room is large enough to have the usual noise outside levelled down to a degree may not disturb my sleep except for ...of course a fall of a very very enormous furniture/television/chandelier or dynamites explosion ,plane crash nearby etc..
I didnot give up checking outsude my room and all my house : no intruders no crash or the like and especially to my confusion my parent which sleep downstair were sleeping soundly.that night after return to bed I fell asleep again.i was not scared too much by the though of ghostly manifestation.perhaps!!
but what made me to think seriously about ghosts trick was its return of the very same noise in the following night: extremely loud like something intensive blasting with or getting cracked by explosive materials ,repeated only twice,sounded seemingly right in my bed!at my ears! in spite of very very careful search for intruder in every possible corner and even cavity in my house before sleep it came
to wake me up again(my parent neither heard it nor knew about it)
from then 2 night of undisturbed sleep followed by the death of my grandma. till now whether it was trick or anything unexplainable remains mystery.there must have been a culprit .who was it?