(b) There is regularly only a venial sin, when a vain observance is of a non-religious kind, consisting in foolish heed given to chance happenings (such as a rabbit running across the road, the mention of death, the presence of a person regarded as a Jonah), or the use of improportionate means (e.g., to change one’s place at a card table in order to change the luck). For usually there is no irreverence in such practices, and at the worst they are foolish and idle acts. Often there is no sin at all, the vain observance being due to ignorance or the wish to joke.
(c) There is no sin at all, but rather subjective virtue, in religious practices to which on account of simplicity or invincible ignorance too much power is attributed, as when one who is faithful to the essential duties of religion has greater confidence in some personal devotion of his own than in them. But superstition of this kind, though in itself it is the least reprehensible form of superstition, may be very harmful and disedifying.
2296. Cooperation in Divination or Other Form of Superstition.—(a) Formal cooperation is of course never lawful (e.g., to act as the medium or one of the deceivers at a spiritistic meeting). (b) Material cooperation is lawful only when there is a proportionately grave reason, no danger of sin, and no scandal. Thus, it seems that no sin is committed by a scientist who assists at a spiritistic seance in order to discover the frauds that are resorted to, or who makes experiments with table turning or planchette movements in order to examine into the theory that the phenomena are due to the action of the persons present.
2297. Doubtful Cases of Vain Observance.—Cases in which it is a matter of doubt or dispute whether divination or vain observance is present.
(a) There is sometimes uncertainty whether an extraordinary fact is due to natural or supranatural causes, Thus, authorities commonly take the position, it seems, that certain phenomena of Spiritism (e.g., the apparently automatic movement of tables on which a group of persons rest their finger tips, the answers to questions that are rapped out by such tables), and of mental healing (e.g., the cure of bodily ailment by sympathy or moral influence), are accomplished through natural powers of matter or mind. But other authorities incline to a supranaturalistic explanation.
(b) There is also at times uncertainty whether a fact or practice has a religious or an irreligious character. As to facts, they sometimes appear to be so marvellous as to pass the natural, and yet it is difficult to determine whether their source is good or evil (e.g., when an ignorant person not noted for piety seems to have a remarkable ability for treating and curing all kinds of diseases). As to practices, they are sometimes susceptible of a religious or a superstitious interpretation. Thus, one who says, “God bless us,” at a sneeze may intend a prayer against sickness; one who knocks on wood after boasting may intend a prayer to Him who died on the wood of the cross, lest he be punished for boasting.
2298. Licitness of Using Doubtfully Superstitious Means.—It is lawful to use means that are only doubtfully superstitious if the following conditions are present:
(a) internally or subjectively, there must be a good conscience about the use of the means. The rule can be followed that what is not certainly of a supranatural character may be regarded as natural, but that what seems to be supranatural is not to be ascribed to God unless it has the marks and fruits of a divine work. When lawfully using means of a dubious character, it is advisable to make an inner protestation that one acts from reasonable necessity, and has no wish to take part in superstition;
(b) externally or objectively, there must be nothing in the object or circumstances or results to make the use of the means illicit. Thus, even though a practice be not superstitious, it may be unlawful because of the immorality of its object or tendency (e.g., frauds used by psychical researchers, obscene messages given by laboratory telepathists), or of its purpose (e.g., table-rapping used as the instrument of pretended religious revelations), or because of the evil consequences for body or soul (e.g., devotees of the ouija board give scandal to others and often end in insanity or suicide).
2299. Irreligiousness.—We now proceed to the four sins that offend religion by defect, namely, temptation of God and perjury, which show disrespect to God Himself, and sacrilege and simony, which show disrespect to holy things (see 2273). Perjury has been treated above (see 2249), and hence we shall consider now only the other three forms of irreligiousness.