All things are created and designed to Operate a certain way i.e. according to their design. This is in fact why the scientific method works; most things are measurable, predictable and reliable. If there was no design there would be zero consistency or predictability on anything. Everything would be chaos. Yes there are still mysteries but not everything is a mystery.
If there is design it stands to reason there is a Designer. No one thinks a relatively complex device such as a old-school pocket watch came into existence on its own. How much less an intricately and vastly more complex living organism such as a human being. Yet contrary to logic, we seem obsessed with a desire to remove God from the discussion. So much so that many of the ideas promoted and believed by so called experts are actually very illogical. This is an indication that a purely materialist view of the world is rooted in rebellious unbelief, not in reason. In many instances we often better off relying on common sense instead of the so called "experts."
When we acknowledge there is a Designer then it's only reasonable to conclude there is a purpose for that design; if a purpose then there is meaning to the existence of that which is designed. God designed things to operate a certain way just as a watch has a reason for its design and existence.Christ stepped into this broken world of rebellious humanity which is in violation of His design. He took the ¹harm, destruction and pain of that violation upon himself, allowing it to kill him (violation of design always has harmful consequences to someone, whether it us and others). He did this so we might ultimately be delivered from the consequences of that violation - the harm, destruction and breakdown that always occurs when things don't operate according to their design. To benefit from what Christ did we must believe Christ actually did this and He did so for us. If we do not, we are rejecting His offer and left to bear the full consequences of our choice ourself. It is only logical.