Have you ever bought a home? Usually when you make an offer to the seller, you're required to give an earnest deposit- an amount of money to confirm the contract to buy the house.
I thought it was interesting to read in Ephesians 1:13-14 that the holy Spirit has been given to us as "the earnest of our inheritance until the redemption of the purchased possession." Earnest in this case meaning "a part or portion of something given in advance as a guarantee of the remainder."
If the spirit is our "earnest deposit" of the inheritance that God will grant us, how cool will the full inheritance be??!! After all, the spirit is what brings us comfort (Matthew 3:11), guides us to all truth (John 16:13), and gives us love, joy, peace, gentleness, and faith (Galatians 5:22-23). To have even a portion of these gifts brings great joy so I can only imagine how amazing the full inheritance will be if this is just a small taste of it!