Subconscious- existing in the mind but not immediately available to consciousness
Emphasis on "immediately available." There are fields of science devoted to better understanding the subconscious, and dream interpretation is a method used for such a purpose. Therefore, I did not commit any logical fallacies nor use the term "understand" incorrectly, even though I conceded the point to you previously.

Regardless, it's only your opinion that lucid dreaming need serve some greater purpose. It's perfectly acceptable to lucid dream for whatever reason you wish. I find it presumptuous on your part to try to dictate what the purpose of lucid dreaming is, considering its highly personal nature. It's the equivalent of me trying to tell you what the correct religion to believe in is. It's fine to have your opinion on lucid dreaming, but I find it offensive when you criticize those who disagree with you and I don't feel that that sort of attitude is conducive to a debate.