Brother Gabriel of St Mary Magalene, 1953, writes,

“There are many who desire to make progress in the spiritual way and constantly entreat God to draw them and let them advance to this state of perfection [the state of union], but when it pleases God to begin to bring them through the first trials and mortifications, as is necessary, they are unwilling to pass through them, and flee away to escape from the narrow road of life and to seek the broad road of their own consolation” (J.C. LF, 2,27).

This is the reason why many souls do not reach union with God: they are not willing to tread the way of the Cross the only way which leads to it.

You also desire to arrive at divine union, but perhap you, too, think to reach it by a broad, sunny, pleasant way by the way of success, where one goes from victory one enjoys abundant spiritual consolations, where we find the applause, support, and esteem of creatures. But by now you must certainly have understood that it is was to take quite another way, the narrow and obscure way where the soul discovers all its misery, experiences all as powerlessness where consolation from God and men is wanting.

You know, too, that you must accept having to walk on this road for as long as it will please God. How many. months or years will suffice? Only God knows. He often keeps souls a long time in the dark night of the spirit, and it might even be said that, in general, even after the principal waves have been passed, there is always a little of the Night as long as one lives upon earth. The wisest course is to surrender yourself completely to the divine will of God, without setting limits either to the duration. God knows what is best for you.  He who knows so well the weaknesses and necessities of your soul, will know how to prescribe exactly the treatment to cure your evils.

Do not be hasty, but, on the contrary, have much patience, and you will not expose yourself to deception. Let your patience be long-suffering and trustfull because, although you truly suffer, these sufferings do not come to you from an enemy but from your greatest Friend, from God, who loves you much more than you could love yourself.  He seeks your good, your happiness, your sanctifiation much more than you could ever desire them. Hope in Him and you will never be confounded; entrust youself blindly and you will have nothing to Fear. — from Divine Mercy