I was in the ocean with my dad and suddenly a huge wave knocked us over and trapped us underwater. I was transported into a black hole and could feel myself charging through, flying. Then suddenly I could hear my dad's voice asking "are you in the past or the present?". He said it hundreds of times and my only response was "I don't know... I'm just traveling." The lucidity of the dream was remarkable; I could feel my body trapped inside of this hole and the pressure of the velocity. Woke up very relaxed, surprisingly. Pretty trippy. Anyone else experienced anything similar?