Dear Mary:

A "seer" is one who sees, the "sensitive" is one who feels. These people have a paranormal gifts, a preternatual gift for the puporse of serving others.  A genuine seer or sensitive will not experience fatigue or lose their strength and does not need to "recharge" after they do their thing.

The seer of sensitive is not subject to physical reactions but is simply an active conduit for grace. Seers and sensitives, if legitimate, will be "very prayerful individuals, rich in goodness and charity, and especially very humble.

Legitimate seers and sensitives are useful in exorcisms, deliverance, and investigations. Most often they can immediately detect the problem of demonic infestation. The sensitive may be uncomfortable around certain people. Often the seers and sensitives will use a photogragh, a letter, or some other object that belonged to the person suspected of possession. Their usefulness includes all these things and more.

[derived material from An Exorcist Tells His Story by Father Gabriele Amorth]

Father Amorth warns, however, "that it is very difficult to find true seers or sensitives."

People who claim to be seers or senstives who practice their "gift" for personal gain (finaniclal or in prestige) and those who flippantly use this alleged gift like a party-game, are not genuine.

Genuine seers and sensitives are deeply prayerful and humble. They have a gift from God and practice that gift for the greater glory of God and in service to God's people.

Anyone who thinks they have one of these gifts needs to be under the advice of a wise spiritual director with knowlege of these particular matters.

As to the question of the family of a person involved in sinful activities, the answer is Yes. Children, expecially, are vulnerable to a parent who is demonized or living a lifestye that is improper. In effect, the sinner, by continuing in their sin, allows Satan to place the whole family on his radar.

God Bless,
Bro. Ignatius Mary