Swami Sivananda's words of wisdom - Essence of Vedanta

No grief should be felt at any time, because the moment you are disturbed, upset or grieved, you must understand that you have not properly grasped the technique of Yoga. For, if you have properly understand the technique of Yoga, you'll know how to transcend every situation into Yoga. Ignorance is the cause of pain. We cannot be in a state of pain or sorrow if we have a proper conception of Yoga.

Essence of Vedanta - Swami Sivananda