Vivande is the latin singular form for Vivanda, a word which means food. Food to many is a foodstuff, any solid substance that can be consumed by living organisms, especially by eating, in order to sustain life. But what is not always realized by most people is that food is not just foodstuff. It is something that nourishes or sustains. And anything can nourish or sustain.
Books can be food or nourishment for a book lover, just as breathing the fresh air could be food or nourishment for an outdoorsy person. Food is the things that help us sustain our lives to the way that is both comfortable and survivable to us all.