An unbelievable experience - building houses in Argentina

A friend told me about her experience with TECHO.
This is about building homes together with the families and lots of other volunteers in the poor parts of South America.
I was intrigued and decided to help at a TECHO construction in Argentina.
And I can't begin to describe what an awesome experience it was.
I really hope that I can transport the feeling in the following lines - maybe you have to read between the lines.