Start at the beginning: Read Some Emerson - Spiritual Laws, Part 1
What avails it to fight with the eternal laws of mind, which adjust the relation of all persons to each other, by the mathematical measure of their havings and beings? Gertrude is enamoured of Guy; how high, how aristocratic, how Roman his mien and manners! to live with him were life indeed, and no purchase is too great; and heaven and earth are moved to that end. Well, Gertrude has Guy; but what now avails how high, how aristocratic, how Roman his mien and manners, if his heart and aims are in the senate, in the theatre, and in the billiard-room, and she has no aims, no conversation, that can enchant her graceful lord?
He shall have his own society. We can love nothing but nature. The most wonderful talents, the most meritorious exertions, really avail very little with us; but nearness or likeness of nature, - how beautiful is the ease of its victory! Persons approach us famous for their beauty, for their accomplishments, worthy of all wonder for their charms and gifts; they dedicate their whole skill to the hour and the company, with very imperfect result. To be sure, it would be ungrateful in us not to praise them loudly. Then, when all is done, a person of related mind, a brother or sister by nature, comes to us so softly and easily, so nearly and intimately, as if it were the blood in our proper veins, that we feel as if some one was gone, instead of another having come; we are utterly relieved and refreshed; it is a sort of joyful solitude. We foolishly think in our days of sin, that we must court friends by compliance to the customs of society, to its dress, its breeding, and its estimates. But only that soul can be my friend which I encounter on the line of my own march, that soul to which I do not decline, and which does not decline to me, but, native of the same celestial latitude, repeats in its own all my experience. The scholar forgets himself, and apes the customs and costumes of the man of the world, to deserve the smile of beauty, and follows some giddy girl, not yet taught by religious passion to know the noble woman with all that is serene, oracular, and beautiful in her soul. Let him be great, and love shall follow him. Nothing is more deeply punished than the neglect of the affinities by which alone society should be formed, and the insane levity of choosing associates by others' eyes.
Your Comments on Tolle
Spoken like a true Aristotelian.