Lawrence distinguishes between dreams that remain private fantasies and visions pursued consciously in the world. His “dreamers of the day” are people who combine imagination with deliberate action, attempting to transform an idea into something real. Calling such people “dangerous” suggests their capacity to alter existing circumstances rather than simply their willingness to dream.

The final words, “This I did”, make the passage explicitly autobiographical. In the surrounding text, Lawrence connects the idea to his involvement in the Arab Revolt and his ambition to help create the foundations of an independent Arab political future. The statement therefore carries both personal and political meaning.

More broadly, the quotation contrasts aspiration with implementation. A vision acquires practical significance when someone acts on it, although the consequences of doing so may differ from what was originally imagined or intended.