Habit.

46

I know I have the best of time and space, and was never
      measured and never will be measured.

I tramp a perpetual journey, (come listen all!)
My signs are a rain-proof coat, good shoes, and a staff cut
      from the woods,
No friend of mine takes his ease in my chair,
I have no chair, no church, no philosophy,
I lead no man to a dinner-table, library, exchange,
But each man and each woman of you I lead upon a knoll,
My left hand hooking you round the waist,
My right hand pointing to landscapes of continents and the
      public road.

Not I, not any one else can travel that road for you,
You must travel it for yourself.

It is not far, it is within reach,
Perhaps you have been on it since you were born and did
      not know,
Perhaps it is everywhere on water and on land.

Shoulder your duds dear son, and I will mine, and let us
      hasten forth,
Wonderful cities and free nations we shall fetch as we go.

If you tire, give me both burdens, and rest the chuff of your
      hand on my hip,
And in due time you shall repay the same service to me,
For after we start we shall never lie by again.

You are also asking me questions and I hear you,
I answer that I cannot answer, you must find out for yourself.

Sit a while dear son,
Here are biscuits to eat and here is milk to drink,
But as soon as you sleep and renew yourself in sweet
      clothes, I kiss you with a good-by kiss and open the
      gate for your egress hence.

Long enough have you dream'd contemptible dreams,
Now I wash the gum from your eyes,
You must habit yourself to the dazzle of the light and of
      every moment of your life.

Long have you timidly waded holding a plank by the shore,
Now I will you to be a bold swimmer,
To jump off in the midst of the sea, rise again, nod to me,
      shout, and laughingly dash with your hair.

Walt Whitman, from "Leaves of Grass"