Can also be adapted for Yizkor
Jewish wisdom recognizes that deep mourning moves into grieving that also requires support and protection for the primary mourners. One resumes work and social duties after seven days, until after the 30th day, in respect for one's own state of grieving, one doesn't wear new clothes, get a haircut, shave, nor attend celebrations after religious events like a wedding, B-Mitzvah, or circumcision.