How can I keep from singing?

We sang this song at the 9:00 a.m. Mass the morning, and it just perfectly expresses how I feel today. Love always brings a song to my heart.

How Can I Keep from Singing
Music: QUAKER HYMN, attributed to Robert Lowry, 1826-1899
Lyrics att. to Robert Lowry; Alternate verse 3 by Doris Plenn

Verse 1:
My life flows on in endless song;
Above earth’s lamentation.
I hear the real though far-off hymn
That hails a new creation.

Refrain:
No storm can shake my inmost calm,
While to that rock I’m clinging.
Since Love is Lord of heaven and earth,
How can I keep from singing?

Verse 2:
Through all the tumult and the strife,
I hear that music ringing;
It sounds and echos in my soul;
How can I keep from singing?

Verse 3:
What though the tempest ’round me roar,
I hear the truth, it liveth.
What though the darkness ’round me close,
Songs in the night it giveth.

Verse 4:
When tyrants tremble, sick with fear,
And hear their death knells ringing;
When friends rejoice both far and near,
How can I keep from singing?

Verse 5:
The peace of Christ makes fresh my heart,
A fountain ever springing.
All things are mine since I am His;
How can I keep from singing?