These were informal talks about the nation's problems and how FDR would deal with them? be specific

Old Testament feasts fulfilled in Christ:

The old testament played a major role in teaching and worshipping . Even after all these years it is given a pre-eminent place. Giving it a pre-eminent place specifies that after being so old one cannot truly understand Jesus without them.

If one truly understands the old testament then he can can see the wonderful ways god works on behalf of his people. But it also raised questions when Jesus called himself a bread fallen from the heaven but in the end he showed how the bread of heaven gives life to soul. After understanding the  old testament it help us see how can make all things new.