We have no context for a healthy transpersonal sorrow. Some readers may find this a difficult concept and may rebel against the notion that sorrow and joy are both good. Sadness and sorrow have been presented in our culture as bad - they feel bad. If there are only two emotions underlying all others and these two are love and fear, then it may be easy, seem natural, to call sorrow a form of fear. Depression and anger come from fear.
Great joy comes from love, and so does great sorrow.
If you practice compassion, if you ask your heart to be open, you may be surprised by joy, and by sorrow. These great gifts leave you humble, open, and full of gratitude. You may feel as though your newly opened heart is breaking but it is not. That is merely the last ego shell, the carapace, creaking and falling away to reveal your tender heart. If it happens to you, be grateful, and accepting.