Question: During meditation I experience many images.

Babaji:

When pictures or thoughts come, the mind tends to analyze. In meditation, there is no need to analyze. Do not analyze if it is good or bad, or so on. Then the mind will have no job, and it will recede.

In this worldly life you need judgment; but during meditation, don't make judgments - don't do this.  The meditation is a purification process and during this purification process you may experience images - that is the process. The brain decodifies the mind, and the mind gets purified.