In Jainism, "ekasana" refers to a specific dietary vow or practice where a person eats only once in a day, sitting in one place, and consuming only one type of prepared food at one sitting, without getting up or accepting any additional items. This is considered a form of vrata (vow) to cultivate self-control, simplicity, and non-attachment.

"Rasna Vijay" refers to the victory or control over the tongue (taste), which is an important aspect of self-discipline in Jainism. By practicing rituals such as ekasana, a Jain strives to control desires and attachments related to taste and food, thereby progressing on the path of spiritual purification.

In summary:

• Ekasana: Eating only once in a day, at one place, with a disciplined approach.
• Rasna Vijay: Achieving victory over the tongue, i.e., control over taste and food-related desires.

Together, "Rasna Vijay ekasana" signifies the practice of ekasana as a means to control the senses, particularly the tongue, in accordance with Jain principles of self-restraint (samyama) and non-attachment (aparigraha). This is encouraged as part of daily discipline for lay followers (shravakas) and is strictly observed by Jain monks and nuns.