Why do you like ice cream so much? Because of idea – if it is no good, how do you feel? You don’t know yet but you already like it because of old idea; because of memory, you already like past experience. Memory is working, but you don’t know and you think it must be good, so you like it.
What do you like about ice cream? Sweet, cold? Every time you eat ice cream – ask: what does craving like about this food? You have some idea – taste, color or something – already the mind likes something. You can check; taste, is it really good?
You can watch, you can learn.