There is a good analogy in this connection, showing the relationship between the part and whole. Lord Vāmanadeva is actually the Supreme Personality of Godhead, but He appeared to have been "born" as one of the brothers of Indra. Although Vāmanadeva is sometimes taken as a less important demigod, He is actually the maintainer of Indra, the King of the demigods. Thus, although sometimes Vāmanadeva is considered to be a subordinate demigod, His actual position is that of the supreme whole, the source of the entire demigod system. In the same way, a rasa which is actually prominent may sometimes appear to be manifested in a subordinate way, although its actual position is as the main or prominent loving feeling of a devotee.
When an unconstitutional ecstasy of devotional service is manifested prominently at a certain time, it is still accepted as the part. If it is not very prominently manifested, it appears only slightly and merges quickly back into the whole. At such times of slight appearance, no consideration is given to it; when one is eating some palatable dishes, if one also eats a small blade of grass he will not taste it, nor will he care to distinguish what its taste is like.