Haazinu / Sukkos

Moshe, in his final words to בני ישראל , recites the song of האזינו where he forecasts the future of the Jews throughout the generations. One of the stanzas: וישמן ישרון ויבעט ,” Jeshurun became fat and kicked” alludes to days of prosperity when the Jews will desert 'ה.
The אוצר התורה compares wealth to a double edged sword. On one hand, wealth provides one with the peace of mind not having to worry about the next meal & therefore being able to serve 'ה without any hardships or concerns. On the other hand, however, wealth enables one to indulge in temptations as well as arrogance causing him to believe that it was he & not 'ה who was responsible for his success, leading to the eventual disregard of 'ה altogether.

There's a story told of a disciple of ר' מיכל מזלוטשוב  who was very poor. One day he started a business venture which was very successful. The wealthier he became, the farther away from his friends & rebbe he stayed, until he had distanced himself from all his former friends. One day, the rebbe came to visit his former disciple in his mansion who hardly even acknowledges the rebbe’s presence. The rebbe takes him to the window & says " what do you see?" He answers, “people”. The rebbe then takes him to the mirror & asks, “what do you see now”? He responds, “myself, of course”. The rebbe tells him, “the difference between a piece of glass & a mirror is that the glass doesn't have the silver back; so when there's no silver you are able to see others; but put a little silver on the same glass & then you only see yourself.

Now how can we avoid  this? How does one attain material wealth yet attribute all of one’s success to 'ה?  
When the Torah talks about the חג of סוכות the Posuk says, באספכם את תבואת הארץ תחגו את חג ה' שבעת ימים when you gather in the grain you shall celebrate for seven days, which places the holiday of סוכות during the harvest season.

Rashi tells us that this requires us to have leap years; to ensure that סוכות will fall out in the harvest season.  
What is so important that we would add a whole month just to ensure that סוכות falls out during harvest season?

The ספר החינוך answers, that everyone is happy during the harvest season because of the abundance of crops.  'ה is giving us an opportunity to take that happiness, the joy of material wealth, & transform it into the joy of a Mitzva.
The רשב"ם  says that it’s specifically for this reason that, at this time of year when our houses are full and we have everything we need, now is the time to leave our homes & go into the Sukka to demonstrate it’s all from ה .

Additionally, says the ישמח ישראל, Sukkos is called  זמן שמחתנו the time of happiness to display, if one is not a בעל גאווה , that everything  he has is from 'ה and it's not due to his business acumen or strengths. In reality, since 'ה gives us so much more than we deserve, then we will always be happy with what we have.

Perhaps if we internalize the message of סוכות that specifically when we have abundance, we will be able to look past the silver, outside the mirror & see that it’s not our doing, rather its 'ה who brought us here and then no matter how wealthy we become we will always remain loyal to 'ה!