As of "heart dog" here is the poem that I wrote about sheltie as "heart dog":
My Sheltie, O, My Heart!
My Sheltie! My heart!
As it would to Sheltie!
The eyes of innocent dog,
So welcoming!
The hue of color perfection,
White, brown and touch of black,
The hair of Sheltie is a sunshine,
That radiates!
The personality is immaculate,
Of that a Sheltie,
That draws you like a soft gravity,
So comforting!
Sheltie is your true companionship,
Wanting to be with you,
That fills your heart with joy,
That cares!
The loyalty of Sheltie is unfaltering,
Strong, faithful and true,
Looks up to you like a Master,
So attentive!
-Scott Hamm