Why is surrender so difficult?

Krishna has also talked about surrender, but in the actual field of action, in the Kurukshetra war, he is asking Arjuna not to surrender his weapons but to take them up and fight because he is doing a rightful battle to protect dharma; therefore but he says surrender unto me.

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Yoga and Ayurveda – The Intimate Link

We understand that there are only three ways in which we can engage this body-mind-spirit complex called the human being with himself and the world and beyond. The three ways are through the mind [which include the organs of sense], through words, and through actions [involving organs of action]. 

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