Kaala is a measure of time. The first mention of time is recorded in detail in Atharva Veda. I am very curious about the nature of time from Quantum, Mathematical, Philosophical, and Spiritual perspectives and hence explored the verses in the Vedas. Here is an account of what I could surmise.
Remember that translating Sanskrit (the language in which the Vedas are written) and conceptual understanding of what the verses mean is a herculean task.
The Atharva Veda, in its 19th Kanda and Sukthas 53/54, offers profound meditations on the essence of time, crafting a captivating narrative.