On Sunday, June 3, we all went to Southill church, which is very near to Mr. Dilly’s house. It being the first Sunday of the month, the holy sacrament was administered, and I staid to partake of it. When I came afterwards into Dr. Johnson’s room, he said, ‘You did right to stay and receive the communion; I had not thought of it.’ This seemed to imply that he did not choose to approach the altar without a previous preparation, as to which good men entertain different opinions, some holding that it is irreverent to partake of that ordinance without considerable premeditation; others, that whoever is a sincere Christian, and in a proper frame of mind to discharge any other ritual duty of our religion, may, without scruple, discharge this most solemn one. A middle notion I believe to be the just one, which is, that communicants need not think a long train of preparatory forms indispensibly necessary; but neither should they rashly and lightly venture upon so aweful and mysterious an institution. Christians must judge each for himself, what degree of retirement and self-examination is necessary upon each occasion.
-Boswell, Life of Johnson