We are all children of God.
That is why in our hearts we need to love others and help our fellow human beings.
That desire to be good is the seed that God sowed in our soul from the day we were born.
The devil wants to sow in our soul the seed that invites us to behave badly, disobey, treat others badly and turn away from God.
If we let that seed of evil grow in our hearts, we will be very unhappy and we probably can not get to heaven; that is why we must remain very alert, so that only the seed of God is present in our soul.