I'm interested to do a cross-cultural study of a conceptual metaphor 'Love is food' between English and Thai. I would like to compare the use of this metaphor in the two languages to find similarities and differences and see what they can reflect about the two cultures. I've seen some previous works done in this fashion. But my professor want me to focus more and identify what aspects I am going to compare. I'm really confused about what aspects there are. Anyone knows the answer or have any advice? Please help. Thank you in advance.