What is Culture?

A more pressing question is this,
"What is culturing us?"

Whatever is shaping our way of life is culturing us. Our desires, values, beliefs, attitudes and behaviour are all cultured or shaped by external influences.
For example, corporations spend billions of dollars on advertising in order to culture us towards a certain way of life, namely, discontent consumerism and materialism. Advertising does this by creating desires in us for things we often can't afford and probably don't need.
The problem is we are unaware of all the external influences that are shaping us.
One of the most important things we can do for our spiritual growth is be aware of what we are allowing to culture us - or shape our way of life.