Nice experiences !! Still there are soo many naam jappan valiya roohan. Mr. sat have u ever had darshans of gurus and mahapurakhs in dreams or reality. Because i have heard those who do lots of kamaayi waheguru starts giving him/her darshan in sargun form first after that nirgun stage comes. I know a guy from nanaksar samprada he is having darshan of gurus,krishan ji,ram ji,and various sikh as well as mahapurakhs from other faith. He told that he has often times darshan of baba nand singh ji and soo many other mahapurakhs of our faith as well as other. I asked him what about pratakh darshan and he told thats wat he is waiting for but babaji guides him in dreams,answers his queries about this sadhna marg in dreams. His awastha is on bhawar guffa. The dark void kind whole you are talking about is bhawar guffa. And other surprising thing is that he has now recalling his previous lives. N This detachment thing is happening with him also. He doesn't feel love and attachment for her family as well as other Near and dear ones. He said whom should i consider my real parents . Ma n pa of this birth,or of previous birth or even previous to previous one. Read the literature of SWAMI SIVANANDA SARASWATI. He has written alott about self realisation marag and experiences we come across during this marag in a very simple manner.