I think how much depends upon a best friend. When you wake up in the morning you swing your legs out of bed and you put your feet on the ground and you stand up. You don't scoot to the edge of the bed and look down to make sure the floor is there. The floor is always there. Until it's not.
Successfully functioning in a society with diverse values, traditions and lifestyles requires us to have a relationship to our own reactions rather than be captive of them. To resist our tendencies to make right or true, that which is nearly familiar, and wrong or false, that which is only strange.