Regular meditation brings
more self awareness
Meditation has a transformative effect on the body and the mind.
With continued practice it can lead to transcendent states of bliss, peace and aliveness, and a very great joy.
It is, however, useful at every stage and can often be helpful in solving issues in your life, working on practical as well as emotional levels. With the thinking mind stilled, solutions often become apparent without any effort required.
Being relaxed actually leads to greater motivation and more energy, so that more achievement is possible.
This may sound contradictory - we're often led to believe that stress is productive - but we all know intuitively that a drummer with tense hands will not perform to the same standard as one whose hands are relaxed and flow with the music.
Stress, depression, anxiety, hatred, fear and anger dissolve in the light of a clear mind, as well as repetitive compulsions and trains of thought, and a meditator will quite naturally experience more love, more compassion and greater altruism towards others as well as increased happiness, energy and motivation. External issues have less power to affect a meditator.
I have added links here to some recent research on the beneficial changes to a meditator's brain and nervous system, which can start occurring within only two months of practice, and a videoed talk by Matthieu Ricard (the author of 'The Art Of Meditation') to the employees of Google on this subject. The talk is an hour long, but if you have the time it makes a wonderful introduction to the principles and advantages of insight meditation.