"Excessive preoccupation" refers to spending too much time and attention on a certain topic or idea. It means being overly focused or obsessed with something, often to the point where it is not healthy or productive. Full definition
There are at least three of these: (1) the recognition of this fact frees us from excessive preoccupation with the insoluble and divisive problem of the «nature» of Jesus; (2) it frees us from a certain immoderate anxiety about the «historicity» of the Gospels; and (3) it places the miracles of the New Testament in true perspective. (religion-online.org)
Excessive preoccupation with sex: all children are interested in their own and each others» bodies; all children are interested in what goes on in their parents» bedroom. (religion-online.org)
The heresy of the contemporary church and its ministry lies in an excessive preoccupation with busyness, public relations, and «I'm OK, you're OK» sessions — all without theological direction. (religion-online.org)