I experienced this most poignantly during my college years. I discovered firsthand that without regular fellowship, a Christian will inevitably tire and wither.

The Importance of Fellowship (#40)

Oh God, You know all things, there is nothing You do not know.
You created me-made my flesh and bone; please tell me-why do I feel so alone?
I try to follow You, but continually fail; it’s impossible to be a Christian solo.
I need You first in my life, but You also tell me that I need fellow believers to know.
There is great wisdom in fellowship-in sharing my burdens in life.
It also gives me a chance to recuperate from the world’s hectic lifestyle and strife.
Besides these reasons, it helps to build me up, and refresh my faith in the Lord.
“As iron sharpens iron” the Word describes it: a chance to sharpen my spiritual sword.
So guide my steps, O Lord Jesus Christ, to a group of Your followers true.
I pray that You would work through them upon my soul, and make me more like You.