If you think of the mind as a kind of muscle, then meditation is an exercise program to cultivate that muscle. It works to make the mind stronger and more flexible.
Strength is measured in the ability to remember, the capacity to focus and maintain concentrated attention on a chosen object, the ability to take action to consciously achieve objectives.
A more flexible mind is one that is not bound by convention or habit. It learns. It is a mind that adapts to the needs of any situation while adhering to the highest values. It has the ability to objectively observe without reacting and without prejudice.