Not OP, I personally find it makes me calmer and increases my ability to focus.
A good way to visualize is to think of thoughts as a bunch of waves. A thought wave can trigger another wave and usually, it ends up multiplying and the mind ends up with multiple thoughts. When you meditate and observe your thoughts, the waves start to die out. The state of a 'clear mind' where no thoughts appear in your mind is usually fleeting. The longer your meditate, the better you become at the ability to maintain a 'clear mind'. The longer you can maintain a clear mind, the better you are at focussing .
A good way to visualize is to think of thoughts as a bunch of waves. A thought wave can trigger another wave and usually, it ends up multiplying and the mind ends up with multiple thoughts. When you meditate and observe your thoughts, the waves start to die out. The state of a 'clear mind' where no thoughts appear in your mind is usually fleeting. The longer your meditate, the better you become at the ability to maintain a 'clear mind'. The longer you can maintain a clear mind, the better you are at focussing .