The Heart (IC 1805) and Soul (IC 1848) nebulae form a vast star-forming complex in Cassiopeia spanning roughly 300 light-years and lying around 7,500 light-years away. Together they represent one of the most active regions of stellar nurseries visible from the northern hemisphere. Both are sculpted by the radiation and winds of their respective embedded star clusters, creating the intricate pillars and cavities that make this a favourite wide-field target.