Fuchs has redefined missionary as any person who comes close to Judaism but who does not want to convert. This is incorrect. A Christian who does not preach and who does not convert anyone is, by definition, not a missionary.
The Hebrew calendar determines on which day each Jewish holiday will occur. Each particular holiday brings with it a concrete spiritual reality from above that is available for us to tap into on that specific day. Passover, for instance, contains the opportunity to attain spiritual freedom; Rosh Hashana (the Jewish New Year) is the time for judgment. With our beautiful new Hebrew calendar, you can keep track of exactly where we are in the Jewish year!