A. Mom is within her year of mourning of the passing of her mom, so there are some restrictions on her participation in celebratory events like a wedding. But no doubt, Mom should be at your wedding. Speak to your Rabbi, basically what’s often done is that Mom performs some kind of small, symbolic work at the wedding – serves something to the table, so that technically she’s there for a job, but practically she’s there to celebrate with you. Without her being there, your own joy would not be complete.