Tear/rip the heart out of something
Definition 1 of 2
Pro Tip 1/3Metaphorical heart
Understand 'heart' as the most vital part, not the actual organ. 
Selling off the old library would tear the heart out of our town's history.
Pro Tip 2/3Emotionally charged
The phrase usually suggests strong emotions, like sadness or anger. 
The sudden resignation of our CEO has ripped the heart out of the company.
Pro Tip 3/3Figurative use
Remember it's a figure of speech, not to be taken literally. 
Replacing the old staff could rip the heart out of the team's spirit.