This year the Solemnity of the Assumption of the Blessed Virgin Mary falls on Thursday, August 15. This is a holy day of obligation for Catholics. Holy Days of Obligation are days within the Church’s liturgical year that Catholics must attend Mass. The Vigil Mass is on Wednesday, August 14, at 6:30 p.m. This coincides with the event "Jesus Heals." The masses on Thursday, August 15, are at 8:30 a.m. and 7:00 p.m.