Illuminating the Bay Bridge was just the first step in local infatuation with light. Grace Cathedral has a brilliantly illuminated shaft that sends viewers into trances, many laying down to more deeply absorb the glowing spirituality, created by the same team that does the light shows at the Conservatory of Flowers. It is sold out for this year but reservations will soon be accepted for 2020. Meanwhile this weekend at the gardens bordering Lake Merritt there are more radiant presentations in a similar vein. 6-11pm. $20.