Imagine, relaxing in a scorching hot tub after a nice long day, just soaking it all in! When you are done, you step out into a foot of snow! How does your leg feel? Tingly? Hurts a bit, it isn't a pleasant at all huh? Then you keep you leg in the snow and it begins to go numb, so you are no longer feeling the unpleasant cold of the snow.
The warmth of you body is like you spiritual sensitivity. When you become warm in the hot tub, your senses (especially touch) are heightened. Just like when you immerse yourself in a very wholesome lifestyle, your spiritual senses are heightened. So when you are nice and warm and hit the cold, it is not pleasant at all and makes you want to crawl back into the hot tub. But when you stay in the snow, you become numb to it and no longer feel it. Just like with our spirits, we enjoy life so much when we live in accordance to the gospel and live a pure wholesome life, and even the touch of sin or coldness makes us want to retreat back to living, because it hurts at first! But if we selfishly choose to numb ourselves and venture into the cold, we will freeze virtually without even knowing it until it is too late. And if you are frozen and intend on getting warm again, you must do so slowly, as not to shock the body. Once you are warm enough from building yourself back up to heat slowly, then you can enjoy that hot tub again! So keep yourselves spiritually alert and conditioned at all times!