To be unselfish is the key to abundance. To not hold on to anything, desire anything, be covetous of anything or anyone. Abundance comes from being content and this comes from acceptance of all life brings our way.
Too often we see the lives of others or review our own lives and wish they would have turned out different brings suffering. These illusions only lead to pain and heartbreak. What we have received is only temporary. As hard as it is to accept this world only gives us transient treasures and trinkets. Whether it be people or things, our inability to control when and how they leave our lives is a lesson we need to learn.
Only eternal gifts last. When we are given them we may hold on to them as tightly as possible but to do this we must let go of what we hold dear that is not eternal. Transience is not evil. To love those who bring wonder, kindness, and love to our life is not wrong. However, it is a bittersweet connection because it is temporary. While this is painful to know and experience it also makes every moment more treasured.
Most of our lives are full of abundance but knowing they are not ours forever is the test of true life, true love, true wisdom.