Best knitting advise....RELAX!

As I'm knitting again and find myself tensing up, I remember the best advise my mom gave me.....RELAX VON!   She would tell me  to rest my work on my lap and relax or I would end up being very sore after knitting for hours.   Now that I'm knitting again after 30 years, I find myself thinking of my Mom every time I catch myself being tense. Miss her and wish she was here to ask for help when I get stuck. Also....wish I would have paid more attention!