It is because the physical mind and nerves react habitually based on past experience. It has no other way to deal with the present or anticipate the future. It is because the physical mind does not have faith and does not trust the Omnipotence of the Divine Grace. One needs to cultivate these and think rationally. It is not necessary that whatever happened in the past is bound to repeat in the future, especially because one learns and grows, one grows in consciousness and can handle life and situations better.
Affectionately,
Alok Da
