Routine is a strategy to achieve a predictable environment for the very young.
The parent creates a framework within which a child can learn to regulate their emotions and the feelings that go with it.
Setting a routine in those early years will contribute greatly to bringing down the level of anxiety that every newborn and young child will experience just by being alive, because nothing yet is familiar and predictable.
Routine allows for the discovery of patterns to which the brain, quite literally, is predisposed.
A low anxiety level frees up energy to learn to love what one is doing and creates feelings of joy and generosity as a result.
Buy your copy of 'How to Hold a Glue Stick' for more practical clues about routines.