On June 16, 1675 Jesus appeared to Sister Margaret Mary Alacoque (now a saint) and asked for the creation of a new feast.
He requested for the Feast of the Sacred Heart to be celebrated on the Friday after the Feast of Corpus Christi, nineteen days after Pentecost.
In 1856, Pope Pius IX extended the feast to the Universal Church. This year, the Solemnity of the Most Sacred Heart of Jesus is celebrated on June 28th.
The devotion to the Sacred Heart is very popular and one you may already know and/or practice. If not, I recommend learning about it.
Rather than explain the devotion, I’ll share a recent experience that connects to the Sacred Heart.