People make enemies out of allies when they have learned that "success" is only found through competition. They view other people's wellbeing as a threat to their own survival. The threat they feel turns into a feeling of pain of loss for themselves. The happiness or good fortune of others is seen to take away from their own chance for satisfaction or worldly achievement. This worldview ultimately prevents a person from ever feeling or achieving a true state of satisfaction within themselves. This painful cycle can be broken when a person begins to see themselves in the other - Then every great good fortune, display of beauty, true love affair, work of art, spiritual insight or worldly achievement, in essence, belongs to you too.
Lak'ech Ala K'in