In our world today, there are so many people crying for love. So many human hearts are saying, "Somebody, somewhere, love me." For many who believe in God, there is still that awful vacuum. It's possible to believe in God, to do God's things, and to still miss the deep experience of His love. Without that love, the emptiness and loneliness in your heart is never satisfied - no matter how many human love relationships you experience.
Drinking lots of water is good for your health - drinking it at home, at work, and while traveling. When your cup or bottle is empty, you can just trade it for a full one.
It's a great idea - taking what is empty and replacing it with what is full. You can also hand Jesus a life that is pretty empty, and He will gave you back a life that is amazingly full. He's done that for countless people, and He would love to do that for you. He said in John 10:10, "The thief comes only to steal and kill and destroy" - that's the devil He's talking about - "I have come that they may have life, and have it to the full."