The topic of incompatibility is a very important one, and those who are pure devotees always expect to find perfect compatibility in descriptions of the different relationships with the Personality of Godhead. The study of compatibility and incompatibility sometimes becomes very involved, and a hint of why this is so is given as follows: When a friend meets another friend, the mellow produced out of that meeting is generally taken as very palatable. But actually with such meetings between two friends, there are so many feelings involved that it is difficult to ascertain when these feelings are actually becoming compatible and when they are becoming incompatible.
Expert literary scholars have analyzed the rasas which are compatible with one another by contrasting the various rasas in a particular mixture under the names "whole" and "part." According to this method, the prominent feeling is called the "whole," and the subordinate feeling is called the "part."
The following statement elucidates the subject of part and whole: "All living entities are just like sparks from the supreme fire, and as such, I do not know if I, a tiny spark, shall be able to engage myself in the transcendental loving service of this supreme fire, Lord Kṛṣṇa." In this statement, the feelings of neutral love are taken as the whole, whereas the desire to serve the Lord is taken as the part. Actually, in the Brahman effulgence there is no chance for reciprocation of loving ecstasy between the Lord and the devotee.
There is another quotation by a devotee who laments as follows: "Alas, I am still trying to relish different pleasurable states from this body, which is simply some skin covering mucus, semina and blood. In this state of consciousness I am so condemned that I cannot relish the transcendental ecstasy of remembering the Supreme Personality of Godhead." In this statement there are two ecstatic loving humors, namely neutrality and ghastliness. Neutrality is taken here as the whole, whereas the ecstasy of ghastliness is the part.
There is a similar statement by a devotee as follows: "I shall now begin my service of fanning the Supreme Personality of Godhead, Śrī Kṛṣṇa, who is seated on a golden throne. He is the supreme Param-brahma in His eternal transcendental form of a cloudy blackish complexion. Now I shall give up my affection for my material body, which is nothing but a bunch of flesh and blood." Herein also there is a combination of servitude and ghastliness, where the ecstasy of servitude is taken as the whole, and the ecstasy of ghastliness is taken as the part.