Past life flash back reincarnation wise

I was in Thang dynasty China and I was  actually fell asleep, I noticed I was blowing out needles of poison towards the enemy of the Tang Dynasty which would probably be around Genghis Khan’s time I was the wind assassin that means I was small and agile and I I would blow out or spread out through a straw I need a little poison and then run like hell and then report back to the emperor to tell him about my deed or near miss Where in the dream I did not end up dying at all for any reason because I was in one of the fastest wind assassins are on the planet I have the time or in earth as they would call it in Chinese history as the most celebrated when does the ass in there was. That was my past life flashback