Meditation is concentration. Not necessarily on clearing your mind, but sometimes on certain thoughts, or sorting out your thoughts. If you are constantly bogged down by thoughts, or complex thinking, meditation provides many pro's.
Pros:
Clears mind
Sorts out thoughts
Calming
Self-realization
Improves focus
Cons:
Requires silence
Time consuming
Change in perception
When you have decided to tak up meditation, you learn a basic sitting position(https://www.bulletproofexec.com/wp-content/uploads/2015/03/meditation_sun.jpg). While most times, you sit cross-legged, arm and finger positions change frequently between people. Below are so