According to Osho, the 'points of light' you may see are not imagination but the release of subtle sensory impressions stored in the optic nerves. As the back-brain and nerves relax, these latent light imprints surface, just as inner sounds arise from stored auditory impressions. They are neurological residues, not mystical signs, and should be witnessed without attachment.
Those little lights aren’t magic or made up—they’re your eyes’ leftover light-memories appearing as you relax.