Love and the "Phenomenological Attitude"
When the editors of Geisteswissenschaften invited Scheler (about 1913/14) to write on the then developing philosophical method of phenomenology, Scheler indicated a reservation concerning the task because he could only report his own viewpoint on phenomenology and there was no "phenomenological school" defined by universally accepted theses. There was only a circle of philosophers bound by a "common bearing and attitude toward philosophical problems." Scheler never agreed with Husserl that phenomenology is a method in the strict sense, but rather "an attitude of spiritual seeing...something which otherwise remains hidden...." Calling phenomenology a method fails to take seriously the phenomenological domain of original experience: the givenness of phenomenological facts (essences or values as a priori) "before they have been fixed by logic," and prior to assuming a set of criteria or symbols, as is the case in the empirical and human sciences as well as other (modern) philosophies which tailor their methods to those of the sciences.
Rather, that which is given in phenomenology "is given only in the seeing and experiencing act itself." The essences are never given to an 'outside' observer with no direct contact with the thing itself. Phenomenology is an engagement of phenomena, while simultaneously a waiting for its self-givenness; it is not a methodical procedure of observation as if its object is stationary. Thus, the particular attitude (Geisteshaltung, lit. "disposition of the spirit" or "spiritual posture") of the philosopher is crucial for the disclosure, or seeing, of phenomenological facts. This attitude is fundamentally a moral one, where the strength of philosophical inquiry rests upon the basis of love. Scheler describes the essence of philosophical thinking as "a love-determined movement of the inmost personal self of a finite being toward participation in the essential reality of all possibles." 
The movement and act of love is important for philosophy for two reasons: (1) If philosophy, as Scheler describes it, hearkening back to the Platonic tradition, is a participation in a "primal essence of all essences" (Urwesen), it follows that for this participation to be achieved one must incorporate within oneself the content or essential characteristic of the primal essence. For Scheler, such a primal essence is most characterized according to love, thus the way to achieve the most direct and intimate participation is precisely to share in the movement of love. It is important to mention, however, that this primal essence is not an objectifiable entity whose possible correlate is knowledge; thus, even if philosophy is always concerned with knowing, as Scheler would concur, nevertheless, reason itself is not the proper participative faculty by which the greatest level of knowing is achieved. Only when reason and logic have behind them the movement of love and the proper moral preconditions can one achieve philosophical knowledge. (2) Love is likewise important insofar as its essence is the condition for the possibility of the givenness of value-objects and especially the givenness of an object in terms of its highest possible value. Love is the movement which "brings about the continuous emergence of ever-higher value in the object--just as if it was streaming out from the object of its own accord, without any sort of exertion...on the part of the lover. ...true love open our spiritual eyes to ever-higher values in the object loved."  Hatred, on the other hand, is the closing off of oneself or closing ones eyes to the world of values. It is in the latter context that value-inversions or devaluations become prevalent, and are sometimes solidified as proper in societies. Furthermore, by calling love a movement, Scheler hopes to dispel the interpretation that love and hate are only reactions to felt values rather than the very ground for the possibility of value-givenness (or value-concealment). Scheler writes, "Love and hate are acts in which the value-realm accessible to the feelings of a being...is either extended or narrowed." Love and hate are to be distinguished from sensible and even psychical feelings; they are, instead, characterized by an intentional function (one always loves or hates something) and therefore must belong to the same anthropological sphere as theoretical consciousness and the acts of willing and thinking. Scheler, therefore calls love and hate, "spiritual feelings," and are the basis for an "emotive a priori" insofar as values, through love, are given in the same manner as are essences, through cognition. In short, love is a value-cognition, and insofar as it is determinative of the way in which a philosopher approaches the world, it is also indicative of a phenomenological attitude.