Meditation is a wonderful way to build mental strength!
Consider this: Just as it’s the nature of the heart to beat, it’s the nature of the mind to generate thoughts. Meditation is not a practice of suppressing these thoughts, but it’s a process of coming into awareness of them–by shifting attention to a neutral object of awareness (such as the breath) each time you notice another thought arise. Essentially, it’s like you’re taking your mind out of drive and shifting it to neutral–again and again and again, sometimes as often as every second or two. Just as the repetitive motion of doing abdominal crunches builds core strength, this continual shift of awareness helps build your mind’s muscle.