People meditate because they want something from it. Most serious meditators I know, the people who made real progress, were miserable. The two main benefits from meditation might be classified as “capacity” or “exercise” and “insight.”
When I was younger, I could run 10 miles in 50 minutes and not be exhausted afterwards. I can’t do that now because I don’t run regularly.
Some benefits from meditation are like this. Concentration meditation, where you hold your attention on something like your breath or a mantra, or the spot between your brows or a candle is “mind exercise.” The more you do it, with proper technique, the better you get. If you stop doing it you lose the benefits: being more relaxed, more able to focus on anything and more able to ignore stuff like pain and anxiety.