The RC belief is Communion is a sacrament and sign of the beliefs held by RCs which aren't shared with other denominations. In other words, you must believe everything the RC Church teaches in order to receive communion. All baptised Christians may receive Communion . God works through each person, through the Holy Spirt. Jesus never turned anyone away from healing.
Communion is a sacrament - considered to be an outward sign of an inward grace.
Through communion, persons may become transformed, healed, and grow in their personal walk with Christ. Emphasis on praying to God, Jesus, or the Holy Spirit in the Trinity Meaningful, inspired preaching is less important than the Communion aspect of worship. Seminarians spend much more time learning how to lead worship and sacramentals than they spend time on developing preaching skills. Seminarians serve two years in parishes before ordination to develop pastoral and preaching skills. Events happen in life.