Be sober

(...)

'Things seen  and temporal', the pleasures, the riches, the honours of this world, are apt to intoxicate the mind. Men under their supreme influence are regulated more by imagination and appetite than by conscience and reason. What is present and sensible,  occupies the whole mind. What is unseen and future, is overlooked and forgotten, and treated as if it had no existence. Time is everything, eternity is nothing. 

This is mental intoxication; and sobriety, in opposition to this, is the sound estimate which enlightened conscience and reason form of the comparative value of things seen and unseen, things temporal and eternal, with a habitual state of feeling and action corresponding to that estimate. 

I will not let You go, except you bless me.

"I will not let You go, except you bless me." Genesis 32:26

It is the knowledge of his need that gives true eloquence to the petition of the beggar; a sense of destitution, of absolute poverty, of actual starvation, imparts energy to his plea, and perseverance in its attainment; his language is, "I must have bread, or I die." This is just what we want the child of God to feel: what is he but a pensioner on God's daily bounty? what resources has he within himself?- none whatever; and what is he without God?- poor indeed. 
Now, in proportion as he becomes acquainted with his real case, his utter destitution, he will besiege the throne of grace, and take no denial. He must know his needs, he must know what grace he is deficient in, what besetting sin clings to him, what infirmities encompass him, what portion of the Spirit's work is declining in his soul, where he is the weakest and the most exposed to the attacks of the enemy, and what he yet lacks to perfect him in all the will of God; let him examine himself honestly, and know his real condition. This will endear the throne of grace, will stir up the slumbering spirit of prayer, will supply him with errands to God, and give argument, energy, and perseverance to his suit. It was his deep and pressing sense of need that imparted such boldness and power to the wrestlings of Jacob. "I will not let You go, except You bless me;" and the Lord said, "Your name shall be called no more Jacob, but Israel; for as a prince have you power with God and with men, and have prevailed." Thus imitate the patriarch; begin the day with thinking over what you may possibly need before its close- whether any cross is anticipated, or any temptation is apprehended, or any danger to which you may be exposed; and then go and wrestle for the needed and the promised grace. Oh, it is a great mercy to have an errand that sends us to God; and when we remember what a full heart of love He has, what a readiness to hear, what promptness in all His answers, what entering into the minutest circumstance of a believer's history- how it chides the reluctance and rebukes the unbelief that we perpetually manifest in availing ourselves of this most costly, holy, and precious of all our privileges! 

Octavious Winslow, Morning Thoughts

[Bold Emphasis mine]