Among the factors that impact a person right from birth include genes, environment and a third unseen factor that accounts for the missing pieces in the other two.
This third factor is assigned the name of karma which is said to carry over previous births.
A person’s life however can always be influenced by the actions taken out of their own free will. These actions cause samskara (impressions) on the mind.
The practical approach of Indian philosophy emphasizes the necessity of samskara by performing the right dharmic actions to overcome the limitations of past karma.