When I am dependent upon people, situations and objects external to me for my happiness, I am under their control. I can't be really happy because things external to me suffer from three fold limitations:
- They are finite - finite objects can give only finite results and limited joy
- They bring a mixture of pleasure and pain
- They are addictive in nature
Under this scenario one can never really be happy.
If I choose to remain independent 'atma vasam' I am truly happy. I am not happy because of a situation, a person or on object, I am quite simply HAPPY period.