Astral projection feels like your consciousness separated from your body. Your physical body vibrates. Then you feel pulled out of your body at high speed. You lose consciousness for a moment as you transfer from your physical body to your astral body. Most times you will be in your room in the invisible world that coexists with ours. This is not the astral realm but acts as a buffer zone between you and the astral worlds. From there you can enter higher and lower dimensions based on who you are and where your mind is. Most entities are friendly, some are amused that a human is interacting with them, some don’t care to talk to you. Be nice. This isn’t a dream. These beings are not dream people you can treat however you want. The astral realms are varied but most things are malleable and are affected by thoughts. As far as oneness and connectedness, I don’t know. I feel overwhelmed. I think the content creator is speaking figuratively, like astral projection is a state of mind like nirvana or something. I’ve seen people do that before. Astral projection is as real as living in the physical world. The difference is our bodies and environments.
