Today is the feast of Corpus Christi when we celebrate the Body of Christ which is the Blessed Sacrament the Eucharist. The picture shows the Eucharist in a Monstrance; that is Jesus under the appearance of bread.
You can find out more about the feast of Corpus Christi at http://www.newadvent.org/cathen/04390b.htm
Today the first world wide Holy Hour where Catholics around the world, all 24 time zones, simultaneously honored Jesus in the Eucharist
http://www.catholicnewsagency.com/news/us-catholics-to-join-pope-francis-in-eucharistic-adoration/