Certain words to me seem to have been hijacked and diluted and 'pure heart'seems to fit that category.
Calon Lân is a Welsh hymn, the words of which were written in the 19th century by Daniel James, sung before Welsh rugby union test matches an anthem. I found it interesting that this Welsh word used for pure heart equally means to be complete.
I don't ask for a luxurious life,
the world's gold or its fine pearls,
I ask for a happy heart,
an honest heart, a pure heart.
A pure heart full of goodness
Is fairer than the pretty lily,
None but a pure heart can sing,
Sing in the day, sing in the night.
If I wished for worldly wealth,
It would swiftly go to seed;
The riches of a virtuous, pure heart
Will bear eternal profit.
Evening and morning, my wish
Rising to heaven on the wing of song
For God, for the sake of my Saviour,
To give me a pure heart.
I love the connection that is begining to take shape in my thinking that can be summed up by St. Irenaeus. 'The glory of God is a human being fully alive'