Meditation is a method of sitting still and noticing whatever comes to you nonjudgmentally and in the present moment. You may notice feelings, thoughts, and physical sensations. Memories may come up for you, too.
During the meditation, you don’t dwell on these thoughts, feelings, or memories. Instead, you just notice them and let them pass. Many techniques include noticing feelings like pain or anxiety and then turning your attention to the thoughts you have about those feelings.
Mindful meditation is a calming practice, but it is by no means an inactive one. Your mind is working consistently. It’s just working in a way you might not have experienced before.