What is CBT?
As I stated in my answer to a previous question on CBT,
The basic concept of CBT
Cognitive Behavioural Therapy (CBT) was developed by Aaron Temkin Beck, and as mentioned before, CBT is a combination of behaviourism and behaviour therapy, and cognitive theories and their application in therapeutic settings (Reeves, 2013). CBT helps to ...
As I mentioned previously in the comments, there are a wide range of relaxation techniques which can be used within CBT. Having not read the book mentioned, I looked it up and found how the relaxation technique was described in the book.
From this I can tell you that the technique you have been taught is called Progressive Muscle Relaxation [PMR] (McCallie,...
I suppose the word "accept" you hear comes from the acceptance and commitment therapy, or ACT. According to the link, the healthy attitudes towards the problem (e.g. obesity) are:
Accept your reactions and be present
Choose a valued direction
So to answer your question, it is about accepting your reactions, your emotions about the problem, not ...