In itself human suffering constitutes as it were a specific "world" which exists together with man, which appears in him and passes, and sometimes does not pass, but which consolidates itself and becomes deeply rooted in him.
A különböző VPSZ-típusok megkülönböztetésében alkalmazott főbb jellemzők a következők: vastagság (denier), hosszúság, szilárdság, rugalmasság és zsugorodásvatican.va vatican.va