This is long, but rather insightful:
People have (with the help of conventions) oriented all their solutions toward the easy and toward the easiest side of the easy; but it is clear that we must hold to what is difficult; everything alive holds to it, everything in Nature grows and defends itself in its own way and is characteristically and spontaneously itself, seeks at all costs to be so and against all opposition. We know little, but that we must hold to what is difficult is a certainty that will not forsake us; it is good to be solitary, for solitude is difficult; that something is difficult must be a reason the more for us to do it.
To love is good, too: love being difficult. For one human being to love another: that is perhaps the most difficult of all out tasks, the ultimate, the last test and proof, the work for which all other work is but preparation. For this reason young people, who are beginners in everything, cannot yet know love: they have to learn it. With their whole being, with all their forces, gathered close about their lonely, timid, upward-beating heart, they must learn to love. But learning - time is always a long, secluded time, and so loving, for a long while ahead and far into life, is - solitude, intensified and deepened loneness for him who loves. Love is at first not anything that means merging, giving over and uniting with another (for what would a union be of something unclarified and unfinished, still subordinate?), it is a high inducement to the individual to ripen, to become world, to become world for himself for another's sake, it is a great exacting claim upon him, something that chooses him out and calls him to vast things. Only in this sense, as the task of working at themselves ("to hearken and to hammer day and night"), might young people use the love that is given them. Merging and surrendering and every kind of communion is not for them (who must save and gather for along, long time still), is the ultimate, is perhaps that for which human lives as yet scarcely suffice.
Whoever looks seriously at it finds that neither for death, which is difficult, no for difficult love has any explanation, any solution, any hint of way yet been discerned; and for these two problems that we carry wrapped up and hand on without opening, it will not be possible to discover any general rule resting in agreement. But in the same measure in which we begin as individuals to put life to the test, we shall, being individuals, meet these great things at closer range. The demands which the difficult work of love makes upon our development are more than life-size, and as beginners we are not up to them. But if we nevertheless hold out and take this love upon us as burden and apprenticeship, instead of losing ourselves in all the light and frivolous play, behind which people have hidden from the most earnest earnestness of their existence - then a little progress and alleviation will perhaps be perceptible to those who come long after us; that would be much.
-- Rainer Maria Rilke