God created Man a perfect tripartite being and therefore, this DEATH affected all the three parts.
Man’s spirit died! The spirit lost communion with God.
Man’s soul died! The soul became corrupted thus knew evil experientially.
Man’s body died! The body lost the covering of glory hence became totally naked and became susceptible to physical decay.
In this ruined state, Man was separated from the purpose of his creation i.e., rulership.
God began a restorative work for Man which would place him in a perfect state so that he may rule.