I haven't been a big fan of Dennett really but in the last few weeks of reading him I do think that his writings are extremely important, if for nothing else other than capturing a major way of thinking in the twentieth first century.
It may be that there are inadequacies in language for talking about consciousness. Therefore, it is rather ironic that some philosophers, ranging from the logical positivists to Wittgenstein, see the philosophy as being restricted to the limitations of language. It seems like some kind of double knot.
I have been reading Julian Jaynes recently and he sees language as arising from metaphors, especially those of poetry and song. He also maintains that subjectivity of self arose in connection with this. In the early stages of culture, there was less of a clear distinction between inner and outer reality. He refers to the way in which the Mesopotamians and writers of the Indian 'Upanishads' involved projection of thoughts as 'voices' from the gods.
Also, I am inclined to think that anthropology may throw some light upon the evolution of language and that some dialogue between philosophy and anthropology may be important in thinking about language, which is a central aspect of philosophy. Language is about shared meanings in communication and it may be that in construction of the idea of 'self' others play an important role in mirroring. No person can exist as an entirely separate entity, even in cultures which value individualism.
Some may see consciousness as an illusion, as Dennett does, and others, including some Buddhists see the self as illusionary. However, in some ways, while each person exists as a unique entity, in some ways each person exists as part of the web of culture and its consciousness, with language being the main point of reference. I do also wonder to what extent does individuals consciousness exist, and how dependent is it upon the physical aspects of reality?
In previous times, in the context of dualism, many believed in the journey of the individual 'soul' beyond life on earth. Some people still adhere to that, which has a certain understanding of consciousness. However, many do not hold that view, and it may be that the individual lives on in cultural memory through artefacts. In that sense, information is the basis for continuity of the person. But, so much of the understanding of consciousness, human identity and its continuity comes down to language, but the origins of language itself may be important in considering this too.