Hard cloud dream

I used to have a dream in my child hood.

It is aboud clouds.. I see clouds.. there were in the shape of sea waves.. but hard.. hard and solid clouds.. I could feel them...I walked through them..never hurt me.. but I think ..not sure.. that this dream used to scare me a bit.

They were sea waves but not moving back n forth.. if at all they were moving forward..slowly perhaps..

So did any one have a similar dream?