You have unlocked your Aura and the ability to direct and control it. This gives you the ability to use your Nen and a solid understanding and grounding in the four major principles. And the understanding of advanced Nen techniques. Although only at the level of a beginner. You can choose your nature as a Nen user, whether that being an enhancer, or a manipulator or what have you. You can choose an Nen ability as well as any canon ability, but the conditions and restrictions of said abilities remain. You can create abilities which are powered equal to the Nen sacrificed using it, this ratio changes with increasing mastery of your Nen skills. By adding conditions and restrictions the abilities are strengthened beyond what your mastery of Nen or raw supply would otherwise be able to achieve.