On one side of our living room, two parakeets live in a spacious cage. They have two food dishes, two water containers, numerous perches, and a couple of toys. Despite all this, they bicker--often. And when one is eating, the other will sometimes knock her out of the way to get the food, even though more is available a foot-and-a-half across the cage. They follow one another, often arguing or complaining. Whatever one has, the other wants.
On the other side of our living room, two Zebra finches (that we didn't
anticipate buying after getting the parakeets, but someone had to
rescue the poor things) live in a cage that, for them, has enough room,
but one that I wish had more space. There is one food dish, one water bowl,
one perch, one swing, and one nest. When one eats, the other either
waits patiently until he or she is finished, or they stand and eat side
by side. The same goes with the water. They're kind to one another, watch out for one another, play
well, and when evening draws near, they cuddle up together in the nest. They never look across the room and complain that the birds in the big cage have more.
There is nothing wrong with setting one's sights on a goal or wanting more, unless that want consumes us or leads us to despise others. When that happens, we need to stop and reevaluate our priorities. The greatest commandments are to "love the Lord your God with all your heart and with all your soul and with all your strength and with all your mind, and your neighbor as yourself." Sinful creatures that we are, it's difficult, but it's a lesson we can learn from something as tiny as a Zebra finch.