I have found that the greatest degree of inner tranquility comes from the development of love and compassion. The more we care for the happiness of others, the greater is our own sense of well-being. Cultivating a close, warmhearted feeling for others automatically puts the mind at ease.
If compassion never ceases to flow, then that is meditation. Meditation is not just sitting in the lotus position with eyes closed. Real meditation exists in the midst of the dynamic activity of life.