Over a year ago, I read Adventures Beyond the Body-How to Experience Out- of- Body Travel by William Buhlmann and I find his techniques, tips useful and worthwhile. I experienced several OOBEs and astral travels during that time, however, I had to observe and be aware of my body vibrations, head buzzing and other signals as I’m about to sleep. I wrote and recorded some of those travels. A number of them came via lucid dreams I had as I slept.
I think this is a valuable skill, once you have mastered it. There are several benefits,like decreased fear of death, and I found out that the environment you travel to corresponds with your vibration while you are awake . So, It would be better if one already has a positive frequency/vibe before attempting this. I encountered people, places, houses, etc. and there were no negative entities.