It concerned him that specifically while he was studying this topic, he would be called to officiate at a bris . This feeling gnawed at him and intensified when he entered the house. Something just did not seem right. His suspicions were reinforced upon discreetly inquiring about the mother's behavior. He, therefore, felt compelled to question the young woman directly to avert a further tragedy.
Many stories demonstrate the attention our gedolim gave to every minute occurrence.
Nothing was left to chance. Nothing was coincidental. If they were present, it was for a purpose. Hashem sends us subtle messages from which we are either to glean a lesson or to infer a direction in what we are about to do. The ability to see and discern these lessons is a sign of greatness.