If we are called to be observers and contemplators, we are also called to nourish, to be nourishers, not consumers. Only a nourisher knows when to stop, not to overeat, overindulge, to draw back. To say no. I have a friend who has a coffee mug with the inscription: DON'T JUST DO SOMETHING, STAND THERE ... We often underestimate those who stand there. But I have had to do some new thinking about all this, as I have had to do some new thinking about the sound of the tree falling in the forest. If we are unwilling to practice the gift of contemplation, we are likely to get stuck in one position, and to be fearful of changing it, and so we cling, unable to laugh at ourselves and move on.
The tree of life is one's inner axis that grows from the depths of the earth and reaches to the heavens. It connects together the primal opposites of the temporal and the eternal. It is life lived from the "still center of the turning world" and it embraces the deepest human mystery: that we are eternal beings living in a world of time.