Ingested about 10mg of 99+/100 pure freebase via glass shooter. Took about three consecutive puffs, fully concentrating on holding in the smoke. The taste was not as bad as expected from research. Had a distinct white grape taste... Thick smoke but easier to hold in than a solid hit of weed from a waterpipe. There was a characteristic amplified whistle of suction when the vapor was inhaled.
After 3 milky puffs, looked out the window and saw thick, bilious, brilliant clouds of white smoke entering the room and was overcome by an amazing white light.
Natural tendency was for the subject to stretch out their arms, physically embracing the sensation. The subject did not try to fight the feeling, citing prior experiences. Whatever was experienced was pretty indescribable. It was an overpowering sensation with overtones of "interconnectedness" with other minds or an oblique otherworldly hierarchy. The subject would classify it as "hyperreality", i.e. everything seen (the smoke, the light) was already there, but wasn't focused on or as magnified without the introduction of freebase.
Eventually subject decided to lie down around 2:00 and felt almost the opposite of the momentary ego loss felt before. The subject felt totally concentrated on the nothingness of the physical shell, and could only feel the beating heart.
For the next period, subject was more or less back to reality, but was still noticing every tiny detail of the phenomenal world.
Within 30+ minutes felt more or less normal, but still a bit "out of it". This went away within the next 30 minutes.
Overall, the subject has experienced the aforementioned feelings through other means, i.e. meditation and contemplation. The experience had a "dreamy feeling", which was no surprise. The whole experience more or less suggested an underlying, incredibly powerful chaos undergirding the phenomenal world. That being said, this was more about experiencing how incredibly raw that force is.