Karma Yoga as a means for Meditation

In order to sit for meditation, the mind must be detached and withdrawn from day to day concerns .The means for achieveing this is Karma Yoga , or selfless service .It is the fundamental step on which meditation is built ; no meditation is possible without it .Through service to others without thought of personal gain , positive thinking is also practiced in daily life .

Swami Vishnu devananda , Meditation & Mantras