Sanctification is the second work of Grace.It is the removal of the adamic nature.It is the removal of the inbred sin by God.It is having a purified heart. Sanctification is to uproot the root of sin in your in your life by God. An illustration of Sanctification by God is like when you have a dirty cup,you wash the cups outter part,this is salvation and you wash the inner part of the cup this is Sanctification. You know if you only was the outter part of the cup you can't drink with the cup,you must wash the outter part and the inner part of the cup to make it useful to drink with.This work is done by God. Another illustration of Sanctification when you have a tree of sin and you cut the tree of sin that is salvation and then the root of the three is uprooted from the ground this is Sanctification. You know if you don't uproot the tree from the ground it can grow again which is that th