"My friend buys a new car. Obviously I'll feel jealous"
What is obvious about this?
Friend, his Pleasure and your Jealousy, does it appear to be a logical frame of mind?
When we accept this belief to be obvious, then it becomes our way of thinking. Therefore, the belief as small as this, may be lying somewhere in our rational neurons, never allowing us to question the logic behind its existence...
Jealousy stems from the immaturity and the fact that we use the term friend very loosely. The one whom a person is jealous of, can not be considered to be a friend.
Secondly, we are always told that it's the competition that takes us through in life. Competition is a very strong ideology. If not explained in a positive sense, it may give birth to jealousy... Therefore, you may find otherwise rational people being envious of others nearly everyday...
The one belief that snatches away peace and spiritual awareness like no other sentiment ever can...