Communion experience. Jesus and the Father are one. Receiving the Holy Eucharist unites me to Jesus and the Father. Now, there are three! The Lord desires to invite all of us to be one with him. (To find out about how God longs to be one with us, I again recommend reading the amazing book "He and I" by Gabrielle Bossis.) Rejecting any of God's invitations is a big deal (read the parable of the wedding feast in Matthew 22)! If you do feel invited to do whatever for the Lord, you may ask why, but "no" can never be the right answer.