how can I keep from singing?

This song really touched my heart today, "How Can I Keep From Singing?"

My life flows on in endless song; Above earth's lamentation,

I hear the sweet, tho' far-off hymn, That hails a new creation;

Thro' all the tumult and the strife, I hear the music ringing;

It finds an echo in my soul— How can I keep from singing?

What tho' my joys and comforts die? The Lord my Saviour liveth;

What tho' the darkness gather round? Songs in the night he giveth.

No storm can shake my inmost calm, While to that refuge clinging;

Since Christ is Lord of heaven and earth, How can I keep from singing?

I lift my eyes; the cloud grows thin; I see the blue above it;

And day by day this pathway smooths, Since first I learned to love it,

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?

http://www.youtube.com/watch?v=tQI5wxtH6OY&sns=em