Gita verse 2:48 starts with " yogasthah kuru karmani" meaning "perform actions, being established in yoga". Ofcourse, yoga doesn't mean physical yoga here, but being established in Self, which is one's true nature.
Just thinking loud here....Why do people blame God when something goes wrong but don't thank God when everything is good and great? Meister Eckhart, the German theologian, philosopher and mystic says "If the only prayer you ever said in your entire life is "thank you", that will be enough." Thousands of planes fly and land safely, but if one goes down, God suddenly becomes the culprit !!! Children goes to school every day all over the world, and when there is one school shooting, suddenly God is at fault for not protecting the innocent children..God is obviously responsible for World hunger, global warming, poverty in Africa, child abuse, homosexuality, natural calamities, not to speak of every silliest of inconveniences that can happen to us in day to day life (including if the traffic signal doesn't turn green, soon enough !!! :) :) :) Why can't people learn to thank God, when things go well, to be fair?
Why do Fundamental Questions Arise? Amma Bhagwan
The answer may be that it is just the nature of our minds.. We heard of the expression "doubting Thomas" which is a reference to Apostle Thomas, who refused to believe that the resurrected Jesus had appeared to the ten other apostles, until he could see and feel the wounds received by Jesus on the cross.
In Gita again, Krishna says "samshayatma vinishyati" meaning a person who is always doubtful is destroyed.
Again, this emphasizes the fundamental spiritual position that faith is needed... at least as much as a "mustard seed"...if not a pumpkin seed :)...to move mountains! Mind will continue to ask questions....we probably need some logical explanation to satisfy the immediate curiosity, but ultimately all doubts are not ceased until one recognizes one's own true nature.