Some non-Catholics, including Charismatic Protestants, have criticized devotion to the Sacred Heart as idolatry in that worship is directed towards a body part. The response of Catholics is to contend that the Sacred Heart is a traditional symbol depicting Christ's holy blood as a fountain. Some Catholics have been critical of the overly sentimental nature of such devotion,[5] but most of these critics concede that the images essentially reflect the core Christian tenet of love.