Isn't it just fun to walk through solid structures in dreams? It's something I've done alot in the past 10 years or so just because it feels so awesome.
Normally this happens in a nightmare when I just think "Screw this shit", and just walk away through the wall or something.
What pisses me off is that when I have control over dreams, I can change anything. Except when I am in a nightmare, where I have much less control.
Good job I can wake myself up easily enough. I just have to realise I am in a dream first.
Also when I fly in dreams it tends to be more like swimming breast stoke, or repeated jumping.