"If Christ is formed of our lives, it means that He will suffer in us. ...It is extremely difficult to lay hold of this fact. ...It is really difficult to realise that if He is formed in our life we are not beside Him but in Him; and what He asks of us is to realise that it is actually in what we do that He wants to act and suffer. 

For example, if you are conscripted, it is Christ who is saying good-bye and leaving His home; Christ who is marching on the endless route march. The blisters on the feet of the new recruit are bleeding on the feet of Christ. 

It really needs to be practiced to be understood. We need to say to ourselves a thousand times a day: 'Christ wants to do this', 'Christ wants to suffer this.' 

And we shall thus come to realise that when we resent our circumstances or try to spare ourselves what we should undergo, we are being like Peter when he tried to dissuade our Lord from the Passion"

                               -   Caryll Houselander, The Reed of God