is the giving of information from Master to submissive... hopefully me :).
This information might be visual aides, such as pictures or videos,
might be painting a picture with words to take me where he wants my mind (or body) to be,
might be pushing my buttons within the context of a conversation.
i believe that these methods and others like them are used to hardwire my sub mind.
The information might be used to teach a behavior such as how to pleasure him in a way he prefers to be pleased. Or it could be as a demonstration of technique to expand my knowledge base.
Another purpose of feeding is to keep my cravings high so that i am able to serve more deeply and immediately. And i wish to serve, to please. The more i am fed, the more i wish to please, and the result is he draws me closer and closer towards him and i become more deeply submissive to him and also in my overall submissive feelings that i carry with me through the day. And his dominance may be triggered.