If we learn to appreciate and cherish everything that God does in our lives, then it will be natural for us to sacrifice or build and altar for God.
Know that when speaking about sacrifice, God will never ever ask you for something that you do not have! His love does not require that, God’s love is not abusive. If you truly love someone, you will never ask from them what they do not have.
Forget about what you do not have, think about what you do have. Be sure that you own a lot!