Heart Snatching
Interpreters mentioned that whoever sees their heart snatched from their belly or exiting their body, then eaten by a beast or snatched by a bird, if there is a sick person represented by the heart, they may perish. Otherwise, it may indicate intense fear and awe of God Almighty or a sudden event, and it may lead to loss of reason or corruption of religion, as the heart is the seat of beliefs.
Per Ibn Sirin's Muntakhab al-Kalam fi Tafsir al-Ahlam