Jesus multiplied 5 loaves and 2 fish to feed 5,000! Not only did He supply enough for the five thousand, the leftovers filled 12 baskets! We look at the little we have (faith, money, love, etc.) and wonder how we could ever have more. If given to Jesus, He can return it to you and those around you so much that there will still be some leftover.
If giving Jesus a little does this much, how much more does giving everything get multiplied? Indeed, Jesus wants this from us. The more we give, the more we can receive. If you have a full garage and give from it, you are only able to receive until the garage is full again. If you empty it, you are able to receive so much more. This is like our hearts. However, Jesus loves us so much and desires to give us even more that He would gladly enlarge our hearts to receive more, if only we clean it out first.
God can do a lot with a little. Imagine how much He can do with a lot!