Bhakti-rasāmṛta-sindhu .5.45
tasmād aniyatādhārāḥ sapta sāmayikā ime |
[tasmaad aniyataadhaaraah sapta saamayikaa ime |]
sahajā api līyante baliṣṭhena tiraskṛtāḥ ||45||
[sahajaa api leeyante balishthena tiraskritaah ||45||]
Blended reading (Sanskrit + English inline)
tasmād aniyatādhārāḥ sapta sāmayikā ime |
sahajā api līyante baliṣṭhena tiraskṛtāḥ ||45||
Therefore, these seven emotional states manifest for a short time in a person, and are not fixed in any particular person. [Note: The primary rati is fixed in a particular person according to his inclination, though sometimes it may become subdued or parārtha.] Even though these seven emotions manifest spontaneously, they disappear by being covered by contrary bhāvas arising from the primary rati.
Purport
NoD 33: Indirect Expressions of Ecstatic Love
— A.C. Bhaktivedanta Swami Prabhupāda
Gauḍīya Ācāryas
Jīva Gosvāmī
Gauḍīya
Durgama-saṅgamanī
Commentary
Sahajā api means spontaneous or natural. They are later covered by a contrary bhāva (baliṣṭhena) arising from rati and thus disappear.
My note
Source: vedabase.io