A flightless bird sores
Threw seas and oceans
And surfing across ice and snow
Waddling with their webbed feet

A noun with a very specific purpose
Age
It refers to Egypt pyramids and Aztec temples
And references humanity frequently 

An upside-down bowl
Containing anything from a brain to telescope
Making a beautiful sight
And providing an effective protection

Encompasses all feelings
Whether you are sad, happy
Angry, accepting
Or just normal you are this

It is not fixed, it is not random
Is select by the person it belongs to
It is unique for everyone
And always there to fall back on