There is no such thing as having attained enough. Life is an endless possibility.
Once you have access to the source of creation within you, your health and wellbeing will naturally be taken care of.
"God" is just a name to refer to something that is beyond all limitations.
The fear is simply because you are not living with life, You are living in your mind.
Meditation is an opportunity to move into a dimension where there is no such thing as stress within you.
If you think you are big, you will become small. If you are willing to become an absolute nothing, you will become larger than creation and Creator.