The Lord has instructed us not only in the method of prayer (to pray to the Father in the name of Christ) but to pray regarding every endeavor in which we perform any thing unto the Lord. Amulek also taught us what we should pray about:
'Therefore may God grant unto you, my brethren, that ye may begin to exercise your faith unto repentance, that ye begin to call upon his holy name, that he would have mercy upon you;
Yea, cry unto him for mercy; for he is mighty to save.
Yea, humble yourselves, and continue in prayer unto him.
Cry unto him when ye are in your fields, yea, over all your flocks.
Cry unto him in your houses, yea, over all your household, both morning, mid-day, and evening.
Yea, cry unto him against the power of your enemies.
Yea, cry unto him against the devil, who is an enemy to all righteousness.
Cry unto him over the crops of your fields, that ye may prosper in them.
Cry over the flocks of your fields, that they may increase.
But this is not all; ye must pour out your souls in your closets, and your secret places, and in your wilderness.
Yea, and when you do not cry unto the Lord, let your hearts be full, drawn out in prayer unto him continually for your welfare, and also for the welfare of those who are around you.' (Alma 34:17-27)
The counsel of Alma to his son, Helaman:
'Yea, and cry unto God for all thy support; yea, let all thy doings be unto the Lord, and whithersoever thou goest let it be in the Lord; yea, let all thy thoughts be directed unto the Lord; yea, let the affections of thy heart be placed upon the Lord forever.
Counsel with the Lord in all thy doings, and he will direct thee for good; yea, when thou liest down at night lie down unto the Lord, that he may watch over you in your sleep; and when thou risest in the morning let thy heart be full of thanks unto God; and if ye do these things, ye shall be lifted up at the last day.' (Alma 37:36-37)
Bruce R. McConkie
"There is nothing in the gospel that is better designed to keep the attention of men centered on God, on righteousness, and on their duties than is prayer. Every thought, word, and act is influenced or governed by the nature and extent of one's communion through prayer with Deity. Over and over again the revelations command: Watch and pray always, lest ye enter into temptation." (Mormon Doctrine, p. 581-2)
Joseph Smith
"We would say to the brethren, seek to know God in your closets, call upon him in the fields. Follow the directions of the Book of Mormon, and pray over, and for your families, your cattle, your flocks, your herds, your corn, and all things that you possess; ask the blessing of God upon all your labors, and everything that you engage in. Be virtuous and pure; be men of integrity and truth; keep the commandments of God; and then you will be able more perfectly to understand the difference between right and wrong-between the things of God and the things of men; and your path will be like that of the just, which shineth brighter and brighter unto the perfect day." (Teachings of the Prophet Joseph Smith, p. 247)