Our spiritual metabolism

I recently had a revelation about training ourselves in godliness..

"The apostle Paul warned Timothy, “Have nothing to do with godless myths and old
wives’ tales; rather, train yourself to be godly.” 1 Tim 4: 7.
In an age when everything is instant, we expect transformations to happen quickly but
there is no such thing as instant godliness. The apostle wrote, ‘Train yourself to be
godly’. He exhorted Timothy to be disciplined in order to attain godliness."

Here, we can see that godliness isn't something that comes naturally, or without any hard work, but something that requires exercise; training; discipline.

The Bible constantly urges us to be holy, to live lives that please God, hence to do that, we need to discipline our flesh and here's what I learnt:

My boyfriend explained to me about our metabolic system.
He says that to get our metabolic system going, we need to be constantly pushing it beyond its limits. Like for example, when we run, we need to push it beyond what we can bear, so that when we stop, the body is still in gear; the metabolic rate is still in motion. And as for our daily lives, even when we are doing mundane things like taking the lift, we can lift our bags to work our arms, and such little exercises keep our body going. This is so that even when we are not doing anything, our body's metabolism goes into auto-pilot, and is always in gear.
I see it as the same way as our spirituality.
In training ourselves up in godliness, we need to constantly crucify our flesh, such that on its own, we are always in tuned with the Spirit. Like, for example in little ways like praying.. Whenever we don't feel like praying when we should, we should crucify the flesh and push it a little such that even when at rest, the body (us) is always in the Spirit zone.

..And now, time for a little pushing ;)