Since learning about TMS and mainly watching Sarno DVD, how lifting bending ect section of DVD talks about it can't hurt you, i was wondering if its true that you need strong core muscles before getting into weight training?? My first back sxs started when i was lifting free weights(2009). So since i have over come my back pain (thanks to Sarno and this site) well almost over come my back pain, i can't get rid of my burning sxs,, i can now run, walk, ride bike and lift heavy stuff again, i want to over come my last fear of weight training. I have just starting lifting light weights (2 days now) and was wondering if its true what the personal trainers say about the importance of having a strong core? Should i build up my core muscle first or is that all not true and is it as Sarno said on his DVD if you can lift something then its not too heavy for you..