The universe operates through dynamic exchange .. giving and receiving are different aspects of the flow of energy in the universe. And in our willingness to give that which we seek, we keep the abundance of the universe circulating in our lives.
We lack nothing because our essential nature is one of pure potentiality and infinite possibilities .. Consciousness knows how to fulfill every need, including joy, love, laughter, peace, harmony, and knowledge. If you seek these things first, not only for yourself, but for others - all else will come to you spontaneously.