Buddha said, "Non-attachment is the philosophy of my life." The only way to end suffering is through non-attachment. The only way to be truly free is through non-attachment to any kind of results in the outer world.
Letting go gives us freedom, and freedom is the only condition for happiness. If in our heart we still cling to anything---anger, anxiety, or possessions---we cannot be free. -- Thich Nhat Hanh
Our degree of non-attachment is proportionate to our ability to focus on what we want through our intention. When we are non-attached, we recognize that we're perfect, whole, and complete in the here and now with everything that we have. Only when we need nothing do we have the power to create everything that we want, easily and effortlessly.