Psalm 34:8 (NKJV)
At one time or another most people have gone swimming. The whole point of swimming is self-explanatory: to swim. You don't go swimming to look at the water or have someone else tell you about their experience, you go swimming to swim for yourself, or else you are not swimming! How people go about swimming is another matter. Some people jump right in while others slowly wade into the water. Some people just get into the water a little and decide that swimming is not right for them. Others never get into the water and the only thing they know about swimming is what they see or hear from someone else.
In some ways being a Christian can be compared to swimming; to really find out how great the Christian life is you just have to jump right in. Some people find out about how Jesus died for their sin and took their place on the cross so they jump right in. Then, as the live their life for God they follow His plan and do what He says. But, there are other people who hear the truth about God without ever acting on it. These people might wade into things a little bit to get a feel for what church is like or they might watch how others live and think that there being a Christian is not right for them. Sadly, these people do not know what they are missing.
There are people who take a stand on what the Bible says and live a life based on what they see in it. These are the people who are walking by faith and not by sight and they experience the best that God has to offer. Other people think that following God and living a godly lifestyle is not realistic or much fun, but they have never even had the experience for themselves! Too many people have missed out on the best things in life because they are holding back and not really getting into the things of God for themselves. Christianity is not a spectator sport; we need to jump right in!