Just the way it's important to stay strong physically, so also it is to stay strong spiritually. Imagine if you have to go on days without eating what will happen to your physical body - you will begin to feel weak. The same happens in the spirit man.
The spirit man can also develop muscles just the way your physical body would develop muscles if you engage in regular exercises. Usually people are advised to eat well and do regularly exercise to maintain healthy body. Do you no you can also build a strong and healthy spirit?
The point am driving to is that you should care for your spirit man. Don't wait until you have problems before seeking God. It's important to build a mometum so that when challenges come you can easily withstand them. There's hardly any thing that can overcome power you, if you stay strong enough in the spirit.
Here is what Paul said to the church Ephesians 6:10, KJV: "Finally, my brethren, be strong in the Lord, and in the power of his might."
How do you build your spiritual strength? You can build your spiritual strength by regular fellowship with God by studying his Word and through prayers. Remember those who wait upon the Lord shall re- new their strength.
Exactly, spiritual strength is more important than physical strength