We know God by cultivating a relationship, not by understanding a concept.The relation constitutes the very subjectivity of of our existence. We participate in existence consciously and rationally, with subjective self-knowledge and identity, because the erotic drive of our nature is transformed into a personal relation when there arises in the space of the Other the first signifier of desire: the maternal presence. The subject is born with love's first leap of joy.
When we love God in sincerity and with consistency, He gives us the desires of our heart. And as we love Him how we should be loving Him, our desires are somehow supernaturally conformed to be His desires for us! So, love God, with all that you are in all truth and devotion, and He will reward you according to His will. This is not something that we are capable of by ourselves, but God is faithful to give His chosen ones victory!