Meditate till self disintegrates

This is one paragraph that strikes my attention in "Mahayana Mind Training" from the book "Mind Training - the great collections". For this particular work, the author is unknown.

Since giving your body to others is not mere words,

do so from the depth of your heart.

Since taking others' negative karma and suffering is not mere words,

take these in actual fact from the depths of your heart.

Meditate on this to the point that you feel as if your self

cracks, heaves, and disintegrates.

Pic: Kadampa lineage masters at Root Institute, Bodhgaya, India.