I heard this quote yesterday and really liked it. It comes from a talk called "We Are Women of God" by Sheri Dew.
"As I prepared for an assignment out of the country, I felt such a foreboding about the trip that prior to leaving I sought a priesthood blessing. I was warned that the adversary would attempt to thwart my mission and that physical and spiritual danger lay ahead. I was also counseled that this was not to be a sight-seeing or a shopping trip and that if I would focus on my assignments and seek the direction of the Spirit, I would return safely home.
"Well, the warning was sobering. But as I proceeded, pleading for direction and protection each step of the way, I realized that my experience wasn’t all that unique. Might not our Father have said to you and to me as we left His presence: 'The adversary will attempt to thwart your mission, and you will face spiritual and physical danger. But if you will focus on your assignments, if you will heed my voice, and if you will refuse to reduce mortality to a sight-seeing or a shopping trip, you will return safely home'?
"The adversary is delighted when we act like sightseers, meaning those who are hearers rather than doers of the word (see James 1:22), or shoppers, meaning those preoccupied with the vain things of this world that suffocate our spirits. Satan baits us with perishable pleasures and preoccupations—our bank accounts, our wardrobes, even our waistlines—for he knows that where our treasure is, there will our hearts be also (see Matt. 6:21). Unfortunately, it is easy to let the blinding glare of the adversary’s enticements distract us from the light of Christ. 'For what is a man profited, if he shall gain the whole world, and lose his own soul? (Matt. 16:26)."