What are the 3 gateways to ruin?
According to the Gita, these are kaama (desire), lobha (greed) and krodha (anger).
Why these?
Because when we are full of desires, then our ego (aham) becomes prominent.
When one does anything to fulfil one’s desires, then it’s never enough, and lobha or greed dominates.
No one can have everything they desire, no matter how rich, because there are many things that money cannot buy. And unfulfilled desires when excessive can lead one to cross the line of dharma, and stem from or result in krodha.
How to stay away from this? Just lead a simple life. Earn more, own less, and be ever helpful.