Al-Baqarah

My father always reads this Du'aa after every salah and I have never known the meaning of why he reads it and what it means so today after Fajr salah I asked him and he gave me the same reply which he always does (go look it up. So I went and searched it in the Quran it is the very last ayat of Sura Al-Baqarah ayat 286. Lo and Behold! just reading it I was takin aback, in total shock ya'nee...tears clouded my eyes I struggled to carry on I was so takin aback by it the sheer power radiating from the words left me in tears and speechless.....

On no soul doth Allah
Place a burden greater
Than it can bear.
It gets every good that it earns,
And it suffers every ill it earns.
(Pray:) "Our Lord!
Condem us not
If we forget or fall
Into error; our Lord!
Lay not on us a burden
Like that which Thou
Didst lay on those before us,
Our Lord! lay not on us
A Burden greater than
We have strength to bear.
Blot out our sins,
And grant us forgivness.
Have mercy on us,
Thou art our Protector;
Help us against those
Who stand against Faith."

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In Sura Al-Ma'idah section 7 and 8 starting from ayat 44 i have trouble understanding what it means like the deeper meaning of it...reading it i am often left in confusion......