The Trinity

I am a trinity. 
I am not the Holy Trinity, but I am a trinity.

I have a mind, partly contained in my brain, though my mind is more than just my brain, 
for my mind lives on after my brain is dead. 

I have a body, you can see it. Completely biodegradable, except the fillings in my teeth. 

I have a spirit, that part which is neither of my other two parts, yet is my force of life. 

I am a trinity. 

This is not rocket surgery. 
Eric's mind is fully Eric, yet only a part of Eric. 
Eric's body is fully Eric, yet only a part of Eric. 
Eric's spirit is fully Eric, yet only a part of Eric. 

 And if Eric is a trinity, is God capable of being a Trinity? 
 Most certainly. 
 Yes, He is.