I'm glad you made this thread as your theory was one of the best I heard so far for the Dreamer.

As far as the Illithid tadpole goes and how the Dreamer relates to it, I look at it like this:

  • The tadpole is nothing more than just a regular mindflayer parasite. What makes it special is that it's enveloped in Netherese stasis to prevent it from accomplishing ceremorphosis and make the host stronger.
  • The Illithid tadpole is basically acting as a transceiver sending out telepathic signals at all times, but also receiving them.
  • At the start of the game this signal is incredibly weak and practically non-existent, but gets stronger through regular use.
  • The Dreamer contacts us aboard the Nautiloid and is searching for this signal until it eventually manages to catch this weak signal to utter one sentence; "Where are you?".
  • Eventually once the signal becomes strong enough, the Dreamer is now able to partially connect to that signal and communicate with us exclusively through dreams when our consciousness is at its lowest.
  • Once that signal gets even stronger, the Dreamer is able to communicate even without the dreams, such as telling us; "We are loved" during the day.
  • So the Dreamer now basically is able to hijack the tadpole signal for its own purposes of us becoming its Chosen.


If the Dreamer truly is the influence jailed within the artefact (because it is locked), it would make sense why it is able to not only communicate with us through dreams, but also overpower the tadpole and keep it at bay while allowing us to tap into its beneficial powers. Because this influence also saved us from the fall from the Nautiloid and more importantly literally came to us to repel the Absolute's overpowering influence without breaking a sweat, which is far stronger than the tadpole ever could be.

Also an interesting thing is that overusing the tadpole we get the tag [True Soul], however no matter whether or not we use the tadpole, the Absolute's influence over us is equally overpowering in both cases. The only one that gains a stronger connection with us is the Dreamer, whom the cultists and True Souls cannot hear nor see.

As far as the artefact though, the prism is locked. So the Githyanki runes are probably magical enslavement runes for the whole purpose of enslaving the presence within it to the object, which we might possibly break out in Baldur's Gate with the help of Shar followers and then get as a companion (which we customize at the start of the game).

One of the possibilities could be that the tadpole might actually never leave our head. But instead it may become a merged part of us through the help of the Dreamer and we fully become the Dreamer's Chosen, as was intended.