Being poor in spirit is to understand that God is holy so a man’s sinful nature is acknowledged that causes feelings of contrition which means “brokenhearted in spirit”, so when we are aware of His two places, His high and Holy one, then He will come down into our inward spirit to revive us.

Labor without reward signifies going empty. The Hebrew word for empty or void is "Reqam". In Genesis 31:42, Jacob confronted his father-in-law Laban who mistreated him financially and if God was not with him, Laban would send Jacob away empty-handed (Reqam)

Biblical "remembrance" is not a flashback of memories or the mental capacity of retaining information. "Remember" in Hebrew is "zakar", which implies not only a mental state but a process leading to action.