Do we know our Hearts?

"Verily I say unto you, all among them who know their hearts are honest, and are broken, and their spirits contrite, and are willing to observe their covenants by sacrifice - yea, every sacrifice which I, the Lord, shall command - they are accepted of me." D & C 97:8

Honest and broken hearts, contrite spirits, willing to observe our covenants by sacrificing, all these are required by the Lord. As I am honest with myself and approach the Lord with a broken heart and contrite spirit, bending my will to the Lord's, keeping my covenants at the cost of sacrificing other good things, my sacrifices will be accepted of the Lord. I believe as I make covenants with the Lord part of my keeping these covenants will in turn require sacrifice. The sacrifice may be of time, things, or even desires.