No matter how old we become, we can still call them 'Holy Mother' and 'Father' and put a child-like trust in them.
It is interesting that amongst children of preschool age, the more intelligent ones tend to sleep less than the dull ones. After the age of seven this relationship is reversed, the more intelligent schoolchildren sleeping more than the dull ones.
The age of a child is inversely correlated with the size of the animals it prefers.