I am occasionally asked if it is important to find one's "twin ray," the other part one's self. The first step is to find one's own ray, the Sacred Flame that is God localized within you. If your attention goes to finding someone else, then you stay in duality, always looking for the "other." Furthermore, all beings should be seen as aspects of oneself, for in fact they are. We are all emanations of God Consciousness just as your fingers and toes are emanations of yourself--and all must learn to work harmoniously together.
However, what if one is brought together with the other aspects of oneself? As this may increase the power coming through you, any part of you that is not purified will come to the surface to be dealt with and harmonized. If you can accomplish this, the important thing is how to use that power to help others. This will require deep dedication and commitment to service. Ultimately, all twin rays are united when their separate evolution in duality is finished, so there is no need to go looking. There is no limit to what you, as an embodiment of God, can accomplish on your own. There is no limit to the consciousness and bliss you can experience in your service to the Light regardless of where your twin may be on the path. "The one who would become the greatest in the Kingdom of Heaven must become the least." -Jesus