“Although the seen has disappeared for one whose purpose is accomplished, still it is not destroyed because it is common to others.” Yoga Sutra 2v22
In Unity, the seer and seen merge, leaving only the process of experience, the seeing.
In Brahman, nothing is happening or ever did. But it still seems to continue appearing to happen because it is common to others.
There is also the momentum of karma, as I discussed on The Shadow Drives. As long as there is a body, there is something driving action and world appearances. It takes time for the body to catch up to the lived experience.