Surely goodness and mercy shall follow me all the days of my life: and I will dwell in the house of the LORD for ever.
The word picture for "mercy" is "door of protection".
This word becomes even more powerful when we realise that the word picture for "grace" is "to fence or protect life".
In the act of accepting God's mercy (door of protection) we step into His grace (fence that protects life).
May you enter into the fullness of the mercy of God today and dwell in the protection of His grace.