Ceasar Cipher is a encryption method used in the secret correspondences during the history of cryptography and it is one of the first methods of encryption. It is based on a basic principle of shifting each letter of the alphabet by a specific number and replacing it with the corresponding letter and it is easily solvable.
The word "EAIWSQI" given in the question uses a shift of 4 letters in the alphabet and it is shifted backwards so E corresponds the A, A corresponds to W and so on. When we apply this to the whole message, we can see that the corresponding word is "Awesome".
Transference could be defined as the transfer of something(in this scenario; anger) from someone to another. Tommy is annoyed by his parents decision on his video game time, his anger didn't seize with him but he transferred it to therapist when he talked about it.