It was regarded by the ancients as a message or signal from the God.
The occurrences might be favorable or unfavorable in character.
In fact, they consider the study of omens to be a science.
Gauli shastra for the most part is the science of lizards falling in a subtle way.
According to this shastra, a lizard's every movement mostly is significant, and there mostly are at least 65 spots on the basically human body where the lizard would for all intents and purposes land, foretelling good and terrible omens in a very major way.
Tirumala Tirupati Devastana Telugu AlmanacIt is not considered good luck for the maternal uncle if the fall occurs on back of head.