All creations are one with the universe. Look at the world around you. Can you effectively separate yourself from everything else? After seriously pondering this, most of us rapidly conclude that we cannot. To even make the statement that I exist as a unique entity requires comparison with something else. (If you exist as a distinct being, your distinctiveness is in comparison to other creations. No other creations, no individual you.)
H. E DaveyRealizing that our minds control our bodies while our bodies reflect our minds amounts to understanding the most fundamental aspects of ourselves. It further equals a comprehension of the relationship between our "tools." And since the mind and body are interrelated, this understanding makes it easier to see why coordinating them is a practical way of using these tools to greatest effect-a way of using the mind and body to live our lives as art.
H. E DaveyBy keeping the mind in the present, unless you deliberately want to contemplate the past or future, it's possible to firmly face life without fear. Then, no thoughts of past failures or future problems will exist in the mind, and a truly positive mental state will result-fudoshin, the "immovable mind".
H. E DaveyBasically, if the mind stays in the present, it's impossible to worry. Upon careful consideration, it becomes clear that human beings are capable of worrying only about an event that has already transpired or one that may take place in the future (although the occurrence might have just happened or may be about to happen in the next instant). The present moment contains no time or space for worry.
H. E DaveyThe young should not think of themselves as immature and the elderly need not view themselves as feeble. Our minds control our bodies. Have no age, transcend both past and future, and enter into naka-ima-the "eternal present".
H. E DaveyOur past cannot be changed, and to be preoccupied with it is inefficient in time and effort. Likewise, by fretting over the future, we only exhaust ourselves, making us less able to effectively respond when the future is actually upon us. By worrying about a mishap that may or may not take place, we're forced to undergo the event twice-once when imagining it and once again if and when we actually experience it.
H. E Davey