These are two words of great politeness and courtesy. We are always taught to say thank you and please right from childhood. This is good manners, nay, great manners.
But the two words could not be further apart in their import!
Please is for what is to come.
Thanks is for what came already.
We always want more and more, and hence we probably use please far far far more than we do thanks.
However this usage probably only keeps us unhappy, even if politely so. Because no matter how much we get, the – please I want more – will only grow.
But imagine starting each day, each hour, each minute, each second – with deep rooted thanks. A genuine gratitude for everything that we have already got. Not only is it polite, but it also keeps us mentally happy. Instead of looking for more, we realize we already have more and more.