From St. Tikhon of Zadonsk's Journey to Heaven, in the section "on the remembrance of God in every endeavor":
Everywhere and in every endeavor remember the Lord your God and His holy love for us. Everything that you may see in heaven and on earth and in your house awakens you to the remembrance of the Lord your God and His holy love. We are enveloped in God's love. Every creature of God bears witness to his love for us. When you see God's creation and make use of it, say to yourself thus: This is the work of the hands of the Lord my God, and it was created for my sake. These luminaries of the heavens . . . . This earth . . . . This water . . . . This cattle . . . . This house . . . . This food . . . . This garment . . . . And so on.And from St. Theophan the Recluse's The Spiritual Life, in Letter #48:
This icon is the image of Christ . . . . I worship His unspeakable love for man.
This icon is the image of the Theotokos . . . . Blessed among women is the Mother that bore God incarnate . . . .
This is the icon of the Forerunner . . . .
This is the icon of the apostle . . . .
This word, the Sacred Scripture which I hear . . . . O Lord, grant me ears to hear Thy holy word.
This holy house, the church in which I stand . . . .
This consecrated man, the bishop or priest . . . .
This brother of mine, every man . . . . In a word, every occasion and every thing can and must inspire you to a loving remembrance of the Lord your God, and must show you His love toward you, since even His chastisement comes from His love toward us. According to the Scripture, Whom the Lord loveth He chasteneth (Heb. 12:6). Remember, then, everywhere and on every occasion and in all things, the name of the Lord your God. Take care not to forget your Benefactor when you enjoy His benefactions, lest you appear ungrateful to Him; for forgetfulness of a benefactor is a clear sign of ingratitude.
You write that you cannot manage your thoughts at all, they constantly wander off, your prayer is not going as you would like it, and you scarcely think about God as you go about your daily affairs and deal with other people. . . .Letter #49:
We have a popular belief, fairly widespread, that holds that as soon as you occupy yourself with work around the house or at your place of business, you have already left the sphere of Godly things and things pleasing to God. . . . This is not the case at all. Life's everyday affairs, upon which the foundation of the home and society depend, are appointed by God, and carrying them out is not a desertion to the sphere of the ungodly, but a continuation of Godly affairs. . . .Letter #50:
Remembrance of God is necessary. It is necessary to bring this to the point where the thought of God becomes intimately linked with and becomes one with the mind and heart and with our consciousness. . . .Letter #51:
When exerting yourself to maintain the thought on God, do not treat it as ordinary thought. Instead, combine it with every concept of God that you know, Divine attributes and activities, extending the mind first in one thing and then another. Meditate more on the Divine creation and Providence; on the Incarnation of God the Word and the matter of our salvation that He perfected; on His death, Resurrection and Ascension into Heaven; the descent of the Holy Spirit; the founding of the Holy Church that is the keeper of truth and grace; and of the place prepared for all believers in the Heavenly Kingdom, including you. Meditate also on the Divine attributes, the inexpressible goodness, wisdom, omnipotence, justice, omnipresence, all-mightiness, all-knowingness, ever-blessedness, and greatness. Review all this, if you will, during prayer, or best of all, when you read. When you have done so, you will clearly comprehend that when you think about God, such thought is not ordinary; instead, it is thought that accompanies and evokes a great number of ideas on salvation that affect the heart and energize the spirit. . . .
It is necessary for you to reinterpret everything that comes before your eyes in a spiritual sense. This reinterpretation must fill your mind to such an extent that when you look at something, your eyes see something sensual, but your mind contemplates a spiritual truth. . . .It was actually good timing that I started assembling these passages around the feast of the Holy Cross. Abbot Gerasim of St. Herman of Alaska Monastery gave the homily at Great Vespers, speaking about the Scripture readings and hymns of the feast. He highlighted a lot of patristic typology related to the cross, much of which I'd heard before on one occasion or another, but all of which was good to hear again. It seems the cross is everywhere to be seen, if one knows how to look. If I could get that much down, I think I'd be well on my way.
When you have done this, each thing will be like a holy book or an article in a holy book for you. Then each thing will lead you to thought about God, as will each occupation and deed. You will then walk in the midst of the sensual world as if it were the spiritual realm. Everything will speak to you of God and keep your attention on Him. If each time you add the fear of God and awe before His majesty to this remembrance, then what other teachers and advisors do you need?!