My self is made of thoughts,
Sensations, 
Feelings,

Which come and go, 
And change, Lord, 
Always new;

And though all these 
Will end, Lord, 
At my passing,

My soul won’t change,
For it is part 
Of you.

References 

I knew you before I formed you in your mother’s womb (Jeremiah 1:5; NLT).

I am the Lord and I do not change (Malachi 3:6; NLT).

The dust returns to the ground it came from, and the spirit returns to God who gave it (Ecclesiastes 12:7; NIV).