We must always examine our minds in our daily life — not just through formal meditation, but even when we’re eating, sitting, walking the dog, spending time with our friends, and so on. Then, as soon as any form of attachment, anger, jealousy, or any disturbing force arises, challenge it, because these afflictive emotions cause nothing but chaos — not just in this life, but in terms of lower rebirth in the future too. No outer enemy can do that, but the inner afflictions can.
Avikrita Vajra Rinpoche
from the book Wake Up to What Matters: A Guide to Tibetan Buddhism for the Next Generation